Perhaps you should try some spelling variations:
hanh thang » nhanh thang, thanh thang, hanh trang
hieu lang » chieu sang, hieu quang, nhieu tang
dung cong » dung trong
hoi hieu » hoi phieu, hoi tieu, moi hieu
thang he » tang he, thang nghe, thang nho
cong dan » cong san, cong tan, huong dan
toan cao » toan tap
toan ban » van ban
he dung » he dong, te dung, nghe dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi hieu lang - hanh thang he dung cong dan ((toan cao) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoi hieu lang - hanh thang he dung cong dan ((toan cao) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: hoi hieu lang - hanh thang he dung cong dan ((toan cao) OR (toan ban))*.