Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
van thanh » ban thanh, van tuan
su triet » su viet, su tien, ve triet
va triet » va thiet, va trien, ve triet
luc van » luoc van, luu van, duc van
cam luc » cam xuc, cau luc
hoc anh » hoc nganh, hoc nhanh, ngoc anh
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
ky tang » ky nang, ky dang, kho tang
anh ky » hanh ky, anh y, anh my
ma hoi » xa hoi, ma hoa, me hoi
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: hoc anh ky tang ((ma hoi) OR (mai hoi)). hieu ve cam luc van thanh hai ((va triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc anh ky tang ((ma hoi) OR (mai hoi)). hieu ve cam luc van thanh hai ((va triet) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc anh ky tang ((ma hoi) OR (mai hoi)). hieu ve cam luc van thanh hai ((va triet) or (su triet))".
• Adding a wildcard symbol may retrieve word variants: hoc anh ky tang ((ma hoi) OR (mai hoi)). hieu ve cam luc van thanh hai ((va triet) or (su triet))*.