Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhieu tang » chieu sang, hieu lang, nhiet nang
cua thong » cua thuong, cua tong, suat thong
cua khong » hua khong, cua phuong, cua thuong
he nhieu » hop nhieu, phu nhieu, he dieu
nhan van » nhan dan, nhan va, phan van
ban can » ban dan, ban hang, ban hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: he nhieu tang - thanh trung ((cua thong) or (cua khong)) nhan van ban can~.
• If you are trying to use Boolean operators, they must be ALL CAPS: he nhieu tang - thanh trung ((cua thong) OR (cua khong)) nhan van ban can*.