Perhaps you should try some spelling variations:
hang vai » hang tai, hang hai, hang vi
cac khoi » cac khoan, cach thoi, hoc khoi
cac thoi » cac toi, cac hop, cac tro
cuu tre » cua tre, cau tren, cau treo
cam tuc » cam xuc, cam tu, nam thuc
hieu ve » hieu va, hieu van
ky lang » ky nang, ky dang, ky tang
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam
tuc va » thuc va, truc va, tuc xa
tu sac » tu sach, tu cac, tu san

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky lang ((cac khoi) OR (cac thoi)). hieu ve cam tuc va ((hang vai) or (hang va)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky lang ((cac khoi) OR (cac thoi)). hieu ve cam tuc va ((hang vai) OR (hang va)) cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky lang ((cac khoi) OR (cac thoi)). hieu ve cam tuc va ((hang vai) or (hang va)) cuu tre*".