Perhaps you should try some spelling variations:
van trien » van tien, va trien, van tren
danh ve » dinh ve, hanh ve, anh ve
thuc va » thuc vat, thuc dan, thuc day
hieu ve » hieu va, hieu van
tang xa » trang xa, tang ma, lang xa
ve cam » ve cham, ve cac, va cam
sac ky » sai ky
luc va » duc va, tuc va, loc va
ve van » le van

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sac ky) or (cac ky)) tang xa hoi. hieu ve cam ((luc va) or (thuc va)) danh ve van trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sac ky) OR (cac ky)) tang xa hoi. hieu ve cam ((luc va) OR (thuc va)) danh ve van trien.
• Adding a wildcard symbol may retrieve word variants: te ((sac ky) or (cac ky)) tang xa hoi. hieu ve cam ((luc va) or (thuc va)) danh ve van trien*.