Perhaps you should try some spelling variations:
hoang manh » hoang minh, hoang anh, hoang xanh
cua thuong » cua truong, cua phuong, ca thuong
cua khong » hua khong, cua phuong, cua cong
ho trieu » mot trieu, 30 trieu, ho chieu
25 trieu » 30 trieu
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho trieu) or (25 trieu)) tinh - hoang manh ((cua khong) OR (cua thuong)) cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho trieu) OR (25 trieu)) tinh - hoang manh ((cua khong) OR (cua thuong)) cong tac toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho trieu) or (25 trieu)) tinh - hoang manh ((cua khong) OR (cua thuong)) cong tac toan cao".
• Adding a wildcard symbol may retrieve word variants: ((ho trieu) or (25 trieu)) tinh - hoang manh ((cua khong) OR (cua thuong)) cong tac toan cao*.