Perhaps you should try some spelling variations:
cham tuc » nham thuc, pham thuc, tham thuc
dua tren » dung tren
su sach » so sach, vu sach
sach tu » sach thu, cach tu, sach ty
cuu tre » cua tre, cau tren, cau treo
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
hang xa » hoang xa, hang va, hang ca
tu hang » thu hang, tu hanh, tu hung
va dau » va dao
va dan » ca dan, va dao, va dap

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach tu hang xa hoi. hieu ve cham tuc ((va dan) OR (va dau)) lai ((dua tren) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach tu hang xa hoi. hieu ve cham tuc ((va dan) OR (va dau)) lai ((dua tren) OR (cuu tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach tu hang xa hoi. hieu ve cham tuc ((va dan) OR (va dau)) lai ((dua tren) or (cuu tre))*".