Perhaps you should try some spelling variations:
nhieu tang » chieu sang, nhiet nang
hieu lang » chieu sang, hieu quang, hieu van
tranh cua » doanh cua, manh cua
ban cong » bang cong, van cong, phan cong
cong tap » cuong tap, cong tac, cong tan
tap toan » tap doan, tap quan, bai toan
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)) - canh tranh cua ban cong tap toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) OR (nhieu tang)) - canh tranh cua ban cong tap toan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) OR (nhieu tang)) - canh tranh cua ban cong tap toan cau*.