Perhaps you should try some spelling variations:
nhan luc » nang luc
cua viet » ca viet, hoa viet, cua vat
te sach » toc sach
hieu ve » hieu va, hieu van
ve nhan » ve nha, de nhan, va nhan
va danh » va dinh, va dan, va hanh
danh tu » anh tu, doanh thu
y tang » ky tang, 7 tang, 5 tang
luc va » duc va, tuc va, loc va
tu cua » hu cua, vu cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((y tang) or (6 tang)) xa hoi. hieu ve nhan luc va danh tu cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y tang) OR (6 tang)) xa hoi. hieu ve nhan luc va danh tu cua viet.
• Adding a wildcard symbol may retrieve word variants: te sach ((y tang) or (6 tang)) xa hoi. hieu ve nhan luc va danh tu cua viet*.