Perhaps you should try some spelling variations:
thieu bang » thien bang, thieu khang, thieu quang
van hanh » van thanh, ban hanh, van anh
dua tren » dung tren
su sach » so sach, vu sach
bang xa » lang xa, bang va, mang xa
lam luu » tam luu
luu van » cuu van, luan van, luu hanh
cuu tre » cua tre, cau tren, cau treo
va lam » van lam, va lap

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