Perhaps you should try some spelling variations:
hanh doi » thanh doi, hanh noi, hang doi
hieu ve » hieu va, hieu van
luc van » luoc van, luu van, luc va
ky lang » ky nang, ky dang, ky tang
hoa hoi » khoa hoi, hoa hoc, hoa doi
doi cua » dai cua, hoi cua
duc van » duc va, duc tan, duc manh
tu sac » tu sach, tu cac, tu san
ve cam » ve cham, ve cac, va cam
sac ky » cac ky, sai ky
cua tu » cua tuc, cua su, cua cu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky lang ((hoa hoi) OR (ha noi)). hieu ve cam ((luc van) OR (duc van)) hanh doi cua tu~.
• Adding a wildcard symbol may retrieve word variants: tu sac ky lang ((hoa hoi) or (ha noi)). hieu ve cam ((luc van) or (duc van)) hanh doi cua tu*.