Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
nam thuc » nam thuoc, am thuc, nam thu
vien cua » dien cua, tien cua, bien cua
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
nam xuc » cam xuc, nam xua, nam duoc
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa

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 tang ma hoi. hieu van ((nam xuc) or (nam thuc)) may tinh ((vien cua) or (viec cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky tang ma hoi. hieu van ((nam xuc) OR (nam thuc)) may tinh ((vien cua) OR (viec cua)) triet.
• Adding a wildcard symbol may retrieve word variants: tu sac ky tang ma hoi. hieu van ((nam xuc) or (nam thuc)) may tinh ((vien cua) or (viec cua)) triet*.