Perhaps you should try some spelling variations:
hanh trinh » canh tranh
cong hoan » cong hoa, dong hoa, cong san
hoan phan » hoa phan, toan phan, doan phan
va duong » van duong, va tuong, va huong
phan tap » phan lap, han tap, pha tap
ho diep » hong diep, cho dieu
va dung » van dung, vat dung, va ung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho diep tinh - ((hanh trinh) OR (hanh chinh)) ((va dung) or (va duong)) cong hoan phan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho diep tinh - ((hanh trinh) OR (hanh chinh)) ((va dung) OR (va duong)) cong hoan phan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho diep tinh - ((hanh trinh) OR (hanh chinh)) ((va dung) or (va duong)) cong hoan phan tap".
• Adding a wildcard symbol may retrieve word variants: ho diep tinh - ((hanh trinh) OR (hanh chinh)) ((va dung) or (va duong)) cong hoan phan tap*.