Perhaps you should try some spelling variations:
nhan luc » nang luc
cham luc » cham soc, cham cuu, chat lua
sach ly » sach y, sach lo, sach ty
qua cua » quan cua, quang cua, qua quan
cua cua » cua chua, ca cua, cua cha
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
ly nang » ky nang, ly hang, ly vang
va dan » ca dan, va dao, va dau

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 ly nang xa hoi. hieu va ((cham luc) or (nhan luc)) va dan ((cua cua) OR (qua cua)) viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ly nang xa hoi. hieu va ((cham luc) OR (nhan luc)) va dan ((cua cua) OR (qua cua)) viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ly nang xa hoi. hieu va ((cham luc) or (nhan luc)) va dan ((cua cua) OR (qua cua)) viet*".