Perhaps you should try some spelling variations:
cham luc » cham soc, cham cuu, chat lua
nhan luc » nang luc
te sach » toc sach
tang ma » mang may, tang van
hieu ve » hieu va, hieu van
va tinh » may tinh
tinh ly » trinh ly, sinh ly, dinh ly
cua tre » cua te, cuu tre, cua triet
y tang » ky tang, 6 tang, 7 tang
ma hoi » mai hoi, xa hoi, ma hoa
ly cua » le 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 ma hoi. hieu ve ((cham luc) OR (nhan luc)) va tinh ly cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y tang ma hoi. hieu ve ((cham luc) OR (nhan luc)) va tinh ly cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach y tang ma hoi. hieu ve ((cham luc) OR (nhan luc)) va tinh ly cua tre*.