Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
cac thuc » cach thuc, cac thu, can thuc
hanh tai » hang tai, han tai, hinh tai
thuc va » thuc vat, thuc dan, thuc day
cuc tre » duc tre, cua tre, cuu tre
sach ly » sach lo, sach ty, sach hay
hieu ve » hieu va, hieu van
hang xa » hoang xa, hang va, hang ca
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: co ((sach ly) or (sach y)) hang xa hoi. hieu ve cac thuc va ((hanh tai) OR (thanh tai)) cuc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co ((sach ly) OR (sach y)) hang xa hoi. hieu ve cac thuc va ((hanh tai) OR (thanh tai)) cuc tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "co ((sach ly) or (sach y)) hang xa hoi. hieu ve cac thuc va ((hanh tai) OR (thanh tai)) cuc tre".
• Adding a wildcard symbol may retrieve word variants: co ((sach ly) or (sach y)) hang xa hoi. hieu ve cac thuc va ((hanh tai) OR (thanh tai)) cuc tre*.