Perhaps you should try some spelling variations:
nhan luc » nang luc
hieu van » hieu va, thien van, lieu va
van nhan » van phan, van thanh, danh nhan
may nang » ky nang, cam nang, cao nang
may nong » may cong, mo nong, tay nung
va hanh » van hanh, va thanh, va danh
doi cua » dai cua
hoi cua » hoi chuc
tu sach » thu sach, su sach, te sach
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 sach ((may nang) or (may nong)) xa hoi. hieu van nhan luc va hanh ((doi cua) or (hoi cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((may nang) OR (may nong)) xa hoi. hieu van nhan luc va hanh ((doi cua) OR (hoi cua)) triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ((may nang) or (may nong)) xa hoi. hieu van nhan luc va hanh ((doi cua) or (hoi cua)) triet*.