Perhaps you should try some spelling variations:
sach thue » sach thu, sach thieu, sach tham
thu sach » tu sach, thuat sach, thuoc sach
van hanh » van thanh, ban hanh, van anh
hanh va » hang va, hanh vi
xuc van » duc van, luc van, vuc van
va cham » va chat, va tham
cho tre » cho thue, khoe tre
lang xa » lang ha, dang xay, lang van
nang ma » tang ma, sang ma, nang cao
va cam » va cac, va cao, va cai
va cho » van cho, va co, va che

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 thue ((nang ma) or (lang xa)) hoi. lieu ((va cam) OR (va cham)) xuc van hanh va cho tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach thue ((nang ma) OR (lang xa)) hoi. lieu ((va cam) OR (va cham)) xuc van hanh va cho tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach thue ((nang ma) or (lang xa)) hoi. lieu ((va cam) OR (va cham)) xuc van hanh va cho tre*".