Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
thanh lap » thanh san, phan lap, thanh van
toc sach » hoc sach, doc sach, thuoc sach
xang xa » lang xa, mang xa, ang xa
hieu vu » hieu va, hieu ve, hieu su
vu kham » vu khanh
kham do » kham da, khac do, pham do
y xang » ty xang
cua cu » cua chu, cua cau, cua su
do va » do van, so va

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach y xang xa hoi. hieu vu kham do va ((thanh lap) or (thanh hai)) cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach y xang xa hoi. hieu vu kham do va ((thanh lap) OR (thanh hai)) cua cu.
• Adding a wildcard symbol may retrieve word variants: toc sach y xang xa hoi. hieu vu kham do va ((thanh lap) or (thanh hai)) cua cu*.