Perhaps you should try some spelling variations:
nhieu tang » chieu sang, nhiet nang
thanh chau » thanh cha, thanh cham, thanh chu
hieu lang » chieu sang, hieu quang, hieu van
hanh tran » hanh trang, thanh tran, hanh tram
dong cong » duong cong, dung cong, dang cong
tran van » luan van
cong dan » cong san, cong tan, huong dan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu lang) OR (nhieu tang)) - hanh tran van dong cong dan ((thanh chau) OR (toan cau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) OR (nhieu tang)) - hanh tran van dong cong dan ((thanh chau) OR (toan cau))".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) OR (nhieu tang)) - hanh tran van dong cong dan ((thanh chau) OR (toan cau))*.