Perhaps you should try some spelling variations:
nang cau » nang cao, hang cau, nang dau
hieu van » hieu va, thien van, hieu ve
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
lua tre » cua tre, luy tre, dua tren
te sac » te sach, te san
te cac » tu cac, ve cac, te cao
xuc va » duc va, tuc va, luc va
vi lua » vi luu

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 cac)) ky nang cau hoi. ((hieu van) or (lieu va)) cam xuc va danh vi lua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sac) OR (te cac)) ky nang cau hoi. ((hieu van) OR (lieu va)) cam xuc va danh vi lua tre.
• Adding a wildcard symbol may retrieve word variants: ((te sac) or (te cac)) ky nang cau hoi. ((hieu van) or (lieu va)) cam xuc va danh vi lua tre*.