Perhaps you should try some spelling variations:
tru nang » tra nang, tri nang, truc nano
ve cach » va cach, ve canh
tu nano » truc nano
hieu ve » hieu va, hieu van
cac vuc » cac nuoc, cac vung, cac cuoc
vuc van » duc van, luc van, thuc van
van anh » van thanh, tuan anh, van minh
anh dan » anh dang, anh danh, canh dan
dan cua » dan ca, ban cua, dai cua
cua cau » cua cac, cua chu, cua cay
ve cac » va cac, vien cac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ve cach ((tu nano) or (tru nang)) co hoc. hieu ve cac vuc van anh dan cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ve cach ((tu nano) OR (tru nang)) co hoc. hieu ve cac vuc van anh dan cua cau*.