Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh tai » thanh hai, thanh toan, doanh tai
sach tay » xach tay, sach hay, sach nay
tay tang » tay lang, tay trung, tay quang
cham luc » cham soc, cham cuu, chat lua
nhan luc » nang luc
so sach » so sanh, bo sach, co sach
tang ma » mang may, tang van
hieu va » lieu va, hieu qua
tai cuu » tai cuc, tai buu, tai cua
cuu tre » cua tre, cau tren, cau treo

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: so sach tay tang ma hoa. hieu va ((cham luc) OR (nhan luc)) ban thanh tai cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach tay tang ma hoa. hieu va ((cham luc) OR (nhan luc)) ban thanh tai cuu tre".
• Adding a wildcard symbol may retrieve word variants: so sach tay tang ma hoa. hieu va ((cham luc) OR (nhan luc)) ban thanh tai cuu tre*.