Perhaps you should try some spelling variations:
chay tren » thai tren, ca tren, cau tren
thu sach » tu sach, thuat sach, thuoc sach
ban hanh » ban hang
hanh lai » hanh lam, hanh tai, thanh lap
chau tre » chau tho, cho tre, cau tra
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
xuc ban » duc ban, cuc ban, quoc ban
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y ((nang xa) OR (lang xa)) hoi. hieu ve cam xuc ban hanh lai ((chau tre) or (chay tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y ((nang xa) OR (lang xa)) hoi. hieu ve cam xuc ban hanh lai ((chau tre) OR (chay tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y ((nang xa) OR (lang xa)) hoi. hieu ve cam xuc ban hanh lai ((chau tre) or (chay tren))".
• Adding a wildcard symbol may retrieve word variants: thu sach y ((nang xa) OR (lang xa)) hoi. hieu ve cam xuc ban hanh lai ((chau tre) or (chay tren))*.