Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
thieu tinh » trieu tinh, chieu tinh, thien tinh
hoc thieu » toc thieu, hoc hien
doanh cua » doanh luan
manh toan » thanh toan, anh tuan, tinh toan
manh cua » ban cua
van tan » van tuan, van ban, van tai

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 tinh - hanh ((manh cua) or (doanh cua)) nhung cong ((manh toan) or (van tan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - hanh ((manh cua) OR (doanh cua)) nhung cong ((manh toan) OR (van tan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - hanh ((manh cua) or (doanh cua)) nhung cong ((manh toan) or (van tan)) cau*.