Perhaps you should try some spelling variations:
nang cau » nang cao, hang cau, nang dau
thanh vi » hanh vi, thanh va, thanh ve
luy tre » luyen tre
hieu ve » hieu va, hieu van
cuu tre » cua tre, cau tren, cau treo
te sac » te sach, te cac, te san
luc va » duc va, tuc va, loc va
sac ky » cac ky, sai ky
xuc va » duc va, tuc va, xac va
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 ky nang cau hoi. hieu ve cam ((xuc va) OR (luc va)) thanh vi ((cuu tre) or (luy tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang cau hoi. hieu ve cam ((xuc va) OR (luc va)) thanh vi ((cuu tre) OR (luy tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky nang cau hoi. hieu ve cam ((xuc va) OR (luc va)) thanh vi ((cuu tre) or (luy tre))".
• Adding a wildcard symbol may retrieve word variants: te sac ky nang cau hoi. hieu ve cam ((xuc va) OR (luc va)) thanh vi ((cuu tre) or (luy tre))*.