Perhaps you should try some spelling variations:
sach truc » cach thuc, sach tren, sach thu
truc nang » truc nano, tru nang, truc trang
ban hanh » ban hang
te sach » toc sach
cuu ban » cuu van, cua ban, cuu san
hoi cua » hoi chuc
van lam » van nam
van cam » van nam, van cau, van dam
cao hoi » cau hoi, co hoi, cao hoc
di cua » dai cua, doi cua, de 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 truc nang cao hoi. hieu ((van cam) or (van lam)) cuu ban hanh ((di cua) or (hoi cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach truc nang cao hoi. hieu ((van cam) OR (van lam)) cuu ban hanh ((di cua) OR (hoi cua)) tre.
• Adding a wildcard symbol may retrieve word variants: te sach truc nang cao hoi. hieu ((van cam) or (van lam)) cuu ban hanh ((di cua) or (hoi cua)) tre*.