Perhaps you should try some spelling variations:
hang cau » hang dau, hang ca, nhung cau
luy tre » luyen tre
ky hang » ky nang, ly hang, ky dang
hieu ve » hieu va, hieu van
cuu tre » cua tre, cau tren, cau treo
hanh ve » hanh vi, hanh va, hanh kem
te sac » te sach, te cac, te san
tuc va » thuc va, truc va, tuc xa
sac ky » cac ky, sai ky
xac va » tac va, ac va, bac 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 hang cau hoi. hieu ve cam ((xac va) or (tuc va)) hanh ve ((cuu tre) or (luy tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky hang cau hoi. hieu ve cam ((xac va) OR (tuc va)) hanh ve ((cuu tre) OR (luy tre)).
• Adding a wildcard symbol may retrieve word variants: te sac ky hang cau hoi. hieu ve cam ((xac va) or (tuc va)) hanh ve ((cuu tre) or (luy tre))*.