Perhaps you should try some spelling variations:
hanh trinh » hanh chinh
hoc thieu » toc thieu, hoc hien
dang cong » dung cong
van chinh » va chinh, lan chinh, van thinh
chinh can » chinh ca, chinh ban, chinh cau
ho chieu » theo chieu, doi chieu, mot chieu
cua dang » cua cong, cua ban
cong van » cong vang, cong san, song van

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)) xanh - ((canh tranh) or (hanh trinh)) cua dang cong van chinh can~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) xanh - ((canh tranh) OR (hanh trinh)) cua dang cong van chinh can.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) xanh - ((canh tranh) or (hanh trinh)) cua dang cong van chinh can*.