Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
sach ty » sach y, sach thu, xach tay
han tai » hang tai, nhan tai, van tai
cac tuc » cac toc, cac tu, cac tac
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
hang xa » hoang xa, hang va, hang ca
sach tu » sach thu, cach tu, sach uu
tuc va » thuc va, truc va, tuc xa
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: hoc ((sach ty) OR (sach tu)) hang xa hoi. hieu ve cac tuc va ((han tai) or (thanh tai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((sach ty) OR (sach tu)) hang xa hoi. hieu ve cac tuc va ((han tai) OR (thanh tai)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((sach ty) OR (sach tu)) hang xa hoi. hieu ve cac tuc va ((han tai) or (thanh tai)) cua tre".
• Adding a wildcard symbol may retrieve word variants: hoc ((sach ty) OR (sach tu)) hang xa hoi. hieu ve cac tuc va ((han tai) or (thanh tai)) cua tre*.