Perhaps you should try some spelling variations:
tinh viec » dinh viec, sinh viec, tich viec
tinh viet » trinh viet, ninh viet, dinh viet
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
hieu van » hieu va, thien van, lieu va
nam luc » nang luc, nhan luc, nam thuc
nang ma » tang ma, sang ma, nang cao
luc va » duc va, tuc va, loc va
sai ky » sac ky
ma hoi » mai hoi, xa hoi, ma hoa
tu sai » tu bai, tu san, tu cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky nang ma hoi. hieu van nam luc va ((tinh viec) OR (tinh viet)) ((cua triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang ma hoi. hieu van nam luc va ((tinh viec) OR (tinh viet)) ((cua triet) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky nang ma hoi. hieu van nam luc va ((tinh viec) OR (tinh viet)) ((cua triet) or (su triet))".
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang ma hoi. hieu van nam luc va ((tinh viec) OR (tinh viet)) ((cua triet) or (su triet))*.