Perhaps you should try some spelling variations:
thieu manh » hieu manh, tien manh, trieu minh
hang doanh » nhung doanh, van doanh, dung doanh
hanh doanh » chinh doanh, doanh doanh, kinh doanh
dung ninh » dung vinh, quang ninh, dung nen
ninh tuan » ninh thuan, minh tuan, binh thuan
luan ung » luan hung, luon ung, luan chung
tuan cu » tuan tu, quan cua, tuan thu

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu manh - ((hang doanh) or (hanh doanh)) luan ung dung ninh tuan cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu manh - ((hang doanh) OR (hanh doanh)) luan ung dung ninh tuan cu*.