Perhaps you should try some spelling variations:
hanh hai » thanh hai, nhanh hai, hang hai
dang van » hoang van, hang va
te sach » toc sach
hai cua » thai cua, dai cua, hoi cua
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
ve cac » va cac, vien cac
luc 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) OR (duc va)) hanh 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) OR (duc va)) hanh 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) OR (duc va)) hanh 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) OR (duc va)) hanh hai cua su*.