Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
van thanh » ban thanh, van tuan
ho chieu » theo chieu, doi chieu, mot chieu
tranh va » tranh van, trang va, trinh va
va thong » va thuong, va phuong, he thong
dan toan » van toan, dan than, manh toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (hoc thieu)) tinh - hanh tranh va thong cong ((dan toan) or (van thanh)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) tinh - hanh tranh va thong cong ((dan toan) OR (van thanh)) ban.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) tinh - hanh tranh va thong cong ((dan toan) or (van thanh)) ban*.