Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
dang van » hoang van, hang va
hanh hai » nhanh hai, hang hai, hanh tai
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cac luc » cau luc, coc luc, cac nuoc
ve cac » va cac, vien cac
luc va » duc va, tuc va, loc va
cua su » qua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y ((nang xa) or (dang van)) hoi. hieu ve cac luc va ((hanh hai) OR (thanh hai)) cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((nang xa) OR (dang van)) hoi. hieu ve cac luc va ((hanh hai) OR (thanh hai)) cua su.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((nang xa) or (dang van)) hoi. hieu ve cac luc va ((hanh hai) OR (thanh hai)) cua su".
• Adding a wildcard symbol may retrieve word variants: te sach y ((nang xa) or (dang van)) hoi. hieu ve cac luc va ((hanh hai) OR (thanh hai)) cua su*.