Perhaps you should try some spelling variations:
ve triet » va trien, su triet
danh de » hanh de, dan de, dang de
thuc va » thuc vat, thuc dan, thuc day
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
hieu ve » hieu va, hieu van
te sac » te sach, te cac
luc va » duc va, tuc va, loc va
te san » te ban, ke san, tu san
ve cam » ve cham, ve cac, va cam

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) OR (te san)) ky tang xa hoi. hieu ve cam ((luc va) or (thuc va)) danh de ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sac) OR (te san)) ky tang xa hoi. hieu ve cam ((luc va) OR (thuc va)) danh de ve triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sac) OR (te san)) ky tang xa hoi. hieu ve cam ((luc va) or (thuc va)) danh de ve triet*".