Perhaps you should try some spelling variations:
nhieu tang » chieu sang, nhiet nang
nhung cong » thong cong, hang cong, nhung don
hieu lang » chieu sang, hieu quang, hieu van
hanh mang » nhanh mang, hanh trang, nhanh lang
dung cong » dung trong
mang cua » manh cua, dung cua, ban cua
dan toan » van toan, dan than, manh 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: theo ((hieu lang) or (nhieu tang)) - hanh mang cua ((nhung cong) OR (dung cong)) dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu lang) OR (nhieu tang)) - hanh mang cua ((nhung cong) OR (dung cong)) dan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((hieu lang) or (nhieu tang)) - hanh mang cua ((nhung cong) OR (dung cong)) dan toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((hieu lang) or (nhieu tang)) - hanh mang cua ((nhung cong) OR (dung cong)) dan toan cau*.