Perhaps you should try some spelling variations:
sinh viec » sinh vien, dinh viec, ninh viet
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
nang mai » nang ma, nang tai, lang mai
hieu van » hieu va, thien van, lieu va
nhan luc » nang luc
mai hoi » mai khoi, dai hoi, lai hoi
va sinh » va kinh, va tinh, vi sinh
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky

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