Perhaps can consider cucumbers or winter gourd? I guess it depends on what you like and what type of fence you are talking about (whether it can support the weight of fruits/vegetables which can get real big).
Some people prefer to plant butterfly peas (bunga telang) instead as these plants are low maintenance and produce striking and abundant flowers which can be used in both drinks/meals.
Some other ornamental plants like morning glory and passion flowers can be considered too
Anyway, regardless of what you choose, growing creepers may be a problem when they get "out of control"- quite cumbersome to remove them from fences

Do let us know what you choose in the end~
Depends on how big an area you are talking about? 
I suppose if you want to clear an area for you to start planting something it would be feasible. However, if you are going to plant fruits and vegetables it may be a better idea to leave the plots for a while, so that you don't end up eating chemicals 
After that you will probably have to rely less on chemicals, which is not really good for the environment.

Cow grass, Philippines grass only i know got sell in Malaysia. but dunno which one best

hi, didn't know there's a gardening club in lowyat forum. great! gonna follow this tered.
i suck at raising roses, many failed attempts. so i raise the kind i can use for cooking or can bear fruits. i have a few in my yard:
stevia, lemongrass, aloe vera, chinese chives, betel, turmeric, harbanero chili, chinese violet, pandan, lemon basil, cili padi, limau kasturi, bunga raya, belimbing buluh, mint, rambutan jarum emas, kedondong, semambu, mulberry, kari, henna, asian pigeonwings, passion fruit.

planning to add mango and bergamot.

hope to learn from sifus here.

first question wanna ask, how much water does chili plant need? a lot? frequent watering? once a day only?

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My first harvest of chili! The plant has been growing well and healthy, lots of leaves and flowers, but so far only one fruit. Maybe I should do self pollination?

is the soil very wet? mint only needs moist soil, not too wet.

not sure. i put mine outdoor. receives full direct noon sun.

put mint to get half day sun. and if the pot is small maybe drop some fertilizer in.. i use goat manure.

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yes

Nope. Just ajinomoto. Then my tomato plant like on crack lol. Flowers everywhere

Well the ones that get pollinated do I guess. I too lazy to self pollinate so I leave it to nature haha