Perhaps you should try some spelling variations:
sinh viec » sinh vien, dinh viec, ninh viet
hieu van » hieu va, thien van, lieu va
va trien » va truyen, va thiet, va tuyen
tu sach » thu sach, su sach, te sach
nang ma » tang ma, sang ma, nang cao
nam luc » nang luc, nhan luc, nam thuc
va sinh » va kinh, va tinh, vi sinh
viec va » vien va, viec cua, viec lam
tu sac » tu cac, tu san, tu bac
ma hoi » mai hoi, xa hoi, ma hoa
luc va » duc va, tuc va, loc va

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) or (tu sach)) ky nang ma hoi. hieu van nam luc va sinh viec va trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu sach)) ky nang ma hoi. hieu van nam luc va sinh viec va trien.
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (tu sach)) ky nang ma hoi. hieu van nam luc va sinh viec va trien*.