Perhaps you should try some spelling variations:
nang cau » nang cao, hang cau, nang dau
hieu ve » hieu va, hieu van
cuu tre » cua tre, cau tren, cau treo
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
luc va » duc va, tuc va
loc va » hoc va
vi cuu » vi luu, vinh cuu

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