Perhaps you should try some spelling variations:
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
va duong » van duong, va tuong, va huong
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cao » toan ban, toan tap
va sinh » va kinh, va tinh, vi sinh
va dung » van dung, vat dung, va ung
ho va » ho van, nho va, tho va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho va sinh - hanh tinh ((va dung) OR (va duong)) cong san toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho va sinh - hanh tinh ((va dung) OR (va duong)) cong san toan cao".
• Adding a wildcard symbol may retrieve word variants: ho va sinh - hanh tinh ((va dung) OR (va duong)) cong san toan cao*.