Perhaps you should try some spelling variations:
nhan luc » nang luc
danh dau » lanh dao, hang dau, danh tu
va trien » va truyen, va thiet, va tuyen
tang xa » trang xa, tang ma, lang xa
hieu ve » hieu va, hieu van
ve nhan » ve nha, de nhan, va nhan
va danh » va dinh, va dan, va hanh
sach 6 » sach y
sach 2 » sach y
luc va » duc va, tuc va, loc va
dau va » dau ve, lau va

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 6) or (sach 2)) tang xa hoi. hieu ve nhan luc va danh dau va trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach 6) OR (sach 2)) tang xa hoi. hieu ve nhan luc va danh dau va trien.
• Adding a wildcard symbol may retrieve word variants: te ((sach 6) or (sach 2)) tang xa hoi. hieu ve nhan luc va danh dau va trien*.