Perhaps you should try some spelling variations:
nhieu tang » chieu sang, nhiet nang
hieu lang » chieu sang, hieu quang, hieu van
hanh hanh » hanh han, xanh hanh, nhanh thanh
tong tan » trong tan, cong tan, tong tap
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
hanh va » hang va, hanh vi
va han » va phan, van han, va hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((nhieu tang) or (hieu lang)) - hanh hanh va han tong tan ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((nhieu tang) OR (hieu lang)) - hanh hanh va han tong tan ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: theo ((nhieu tang) or (hieu lang)) - hanh hanh va han tong tan ((toan cau) or (toan ban))*.