Perhaps you should try some spelling variations:
hanh hai » thanh hai, nhanh hai, hang hai
dang van » hoang van, hang va
hieu van » hieu va, thien van, lieu va
te sach » toc sach
cac luc » cau luc, coc luc, cac nuoc
nang xa » nang x, lang xa, nang ma
hai cua » thai cua, dai cua, hoi cua
hieu ve » hieu va
va hanh » van hanh, va thanh, va danh
luc va » duc va, tuc va, loc va
cua te » cua tu

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