Perhaps you should try some spelling variations:
vai trien » va trien, cai thien, cai tien
nhan luc » nang luc
dang bai » dung bai, dang hai, dang ba
hieu van » hieu va, thien van, lieu va
than luc » than duc, thanh luu, thuy luc
ky dang » ky nang, ky danh
bai hoc » dai hoc
hanh va » hang va, hanh vi
va hanh » van hanh, va thanh, ban hanh
va vai » va bai, va van, va dai
su xac » pu xac, su cac
xac ky » cac ky, sac ky, bac ky
ha luc » ha duc

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

• Performing a fuzzy search may retrieve terms with similar spellings: su xac ky dang bai hoc. hieu van ((((ha luc) or (than luc))) or (nhan luc)) va hanh va vai trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su xac ky dang bai hoc. hieu van ((((ha luc) OR (than luc))) OR (nhan luc)) va hanh va vai trien.
• Adding a wildcard symbol may retrieve word variants: su xac ky dang bai hoc. hieu van ((((ha luc) or (than luc))) or (nhan luc)) va hanh va vai trien*.