Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu
trinh cua » tinh cua, trinh luat, trinh quan
cong cong » cong dong, trong cong, dang cong
dung cong » dung trong
van doan » van doanh, van toan, van hoan
doan cau » toan cau, doan dau, doan cap

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) or (hoc hien)) tinh - hanh trinh cua ((cong cong) OR (dung cong)) van doan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (hoc hien)) tinh - hanh trinh cua ((cong cong) OR (dung cong)) van doan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (hoc hien)) tinh - hanh trinh cua ((cong cong) OR (dung cong)) van doan cau".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (hoc hien)) tinh - hanh trinh cua ((cong cong) OR (dung cong)) van doan cau*.