Perhaps you should try some spelling variations:
nhan luc » nang luc
ban hang » ngan hang
va thanh » gia thanh, ban thanh, va tinh
cham cuu » cap cuu, chat cua
te sach » toc sach
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
sang ma » tang ma, nang ma, sang tao
ky sang » ky nang, ky dang, ky tang
ky cua » ly 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 ky sang ma hoa. hieu ve ((cham cuu) or (nhan luc)) ((va thanh) or (ban hang)) ky cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky sang ma hoa. hieu ve ((cham cuu) OR (nhan luc)) ((va thanh) OR (ban hang)) ky cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ky sang ma hoa. hieu ve ((cham cuu) or (nhan luc)) ((va thanh) or (ban hang)) ky cua tre*.