Perhaps you should try some spelling variations:
lam triet » va triet, cam thiet, cau triet
kinh viec » kinh viet, dinh viec, sinh viec
hieu van » hieu va, thien van, lieu va
viec lam » viec va
nam thuc » nam thuoc, am thuc, nam thu
va kinh » va tinh, qua kinh
nam luc » nang luc, nhan luc, nam duoc
tang ma » mang may, tang van
nang ma » sang ma, nang cao, mang may
sac ky » cac ky, sai ky
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 ((nang ma) or (tang ma)) hoi. hieu van ((nam luc) or (nam thuc)) va kinh viec lam triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((nang ma) OR (tang ma)) hoi. hieu van ((nam luc) OR (nam thuc)) va kinh viec lam triet.
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((nang ma) or (tang ma)) hoi. hieu van ((nam luc) or (nam thuc)) va kinh viec lam triet*.