Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu
tong cong » trong cong, cong cong, dung cong
cong lang » cong vang, cong luong, cong quang
trinh vi » trinh va, trinh ve, trinh viet
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap
vi tong » va tong, bi tong, vi dong

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