Perhaps you should try some spelling variations:
sach thi » sach thu, sach tai, sach thieu
chau tre » chay tren, chau tho, cau tra
hanh lam » thanh lap, hanh kem, hanh va
hoang xa » hoang ha, hoang va, hoang xuan
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
loc van » luoc van, hoc van, lo van
cho tre » cho thue, khoe tre
hieu ve » hieu va, hieu van
ha loc » hau loc, chua loc
hang x » nang x, chang xu, hang nxb
ve ha » ve nha, ve hoa, vu ha

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 thi ((hang x) OR (hoang xa)) ho. hieu ve ha loc van hanh lam ((chau tre) or (cho tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach thi ((hang x) OR (hoang xa)) ho. hieu ve ha loc van hanh lam ((chau tre) OR (cho tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach thi ((hang x) OR (hoang xa)) ho. hieu ve ha loc van hanh lam ((chau tre) or (cho tre))".
• Adding a wildcard symbol may retrieve word variants: te sach thi ((hang x) OR (hoang xa)) ho. hieu ve ha loc van hanh lam ((chau tre) or (cho tre))*.