Perhaps you should try some spelling variations:
dua tren » dung tren
cau treo » cau theo, cau tren, cau triet
su sach » so sach, vu sach
bang xa » lang xa, bang va, ang xa
mang xa » lang xa, mang may, dang xay
lam xuc » cam xuc, lam duoc
va hanh » van hanh, va thanh, va danh
va lam » van lam, va lap
xuc va » duc va, tuc va, luc va

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 thieu ((bang xa) or (mang xa)) hoi. lieu va lam xuc va hanh vi ((dua tren) or (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thieu ((bang xa) OR (mang xa)) hoi. lieu va lam xuc va hanh vi ((dua tren) OR (cau treo)).
• Adding a wildcard symbol may retrieve word variants: su sach thieu ((bang xa) or (mang xa)) hoi. lieu va lam xuc va hanh vi ((dua tren) or (cau treo))*.