Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, su sach, te sach
van cua » vang cua, ban cua, dan cua
hieu va » lieu va, hieu qua
sach ty » sach y, sach tu, sach thu
hieu ve » hieu van
hang xa » hoang xa, hang va, lang xa
hang ca » hang va, nang cao, hang tai
cua tre » cua te, cuu tre, cua triet
cam tu » cam thu, nam tu, dam tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty ((hang xa) or (hang ca)) hoi. ((hieu ve) or (hieu va)) cam tu va thanh van cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((hang xa) OR (hang ca)) hoi. ((hieu ve) OR (hieu va)) cam tu va thanh van cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((hang xa) or (hang ca)) hoi. ((hieu ve) or (hieu va)) cam tu va thanh van cua tre*.