Perhaps you should try some spelling variations:
thieu manh » hieu manh, tien manh, trieu minh
canh doanh » hanh doanh, chinh doanh, doanh doanh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
doanh cua » doanh luan
bang cong » dang cong, bang song, hang cong
vat phan » va phan, van phan, sat phan
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu manh - canh doanh cua ((nhung cong) or (bang cong)) vat phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu manh - canh doanh cua ((nhung cong) OR (bang cong)) vat phan cau*.