Perhaps you should try some spelling variations:
sinh viec » sinh vien, dinh viec, ninh viet
su triet » su viet, su tien, ve triet
hieu van » thien van, lieu va, hieu ve
nam luc » nang luc, nhan luc, nam thuc
viec su » viec so, viec cu, viec xu
va sinh » va kinh, va tinh, vi sinh
hieu va » lieu va, hieu qua
luc va » duc va, tuc va, loc va
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
ma hoi » mai hoi, ma hoa, me hoi

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