Perhaps you should try some spelling variations:
nhan luc » nang luc
luc tuan » luc luan, luc quan, luu tuan
tu sach » thu sach, su sach, tu cach
te sach » toc sach
nang ro » nang co, nang ho, nang ra
hieu va » lieu va, hieu qua
va nhan » van nhan, ca nhan, va phan
nang o » nang co, nang ho, nang x
anh ve » hanh ve, anh va, anh viet
ve cua » le cua, de cua, te cua

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) or (te sach)) ky ((nang o) OR (nang ro)) hoi. hieu va nhan luc tuan anh ve cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky ((nang o) OR (nang ro)) hoi. hieu va nhan luc tuan anh ve cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (te sach)) ky ((nang o) OR (nang ro)) hoi. hieu va nhan luc tuan anh ve cua vat".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky ((nang o) OR (nang ro)) hoi. hieu va nhan luc tuan anh ve cua vat*.