Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
duong cong » dung cong, luong cong, duong trong
hoc thieu » hoc hien
trinh qua » trinh quan, trinh cua, trinh quang
qua duong » quan duong, qua dung, qua dong
cong san » cong tac
toan cao » toan tap
toan ban » van ban

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 (toc thieu)) xanh - hanh trinh qua duong cong san ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) xanh - hanh trinh qua duong cong san ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) xanh - hanh trinh qua duong cong san ((toan cao) or (toan ban))*.