Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
quoc dung » quoc hung, duoc dung, quoc dong
dung dung » ung dung, dung ung, dung dong
dung nhan » dung luan
nhan than » nhan thanh, khan than, nhan chan
ho chieu » theo chieu, doi chieu, mot chieu
than cao » toan cao, thai cao, than cap

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 - hanh chinh quoc dung dung nhan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) xanh - hanh chinh quoc dung dung nhan than cao*.