Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hanh doanh » hang doanh, chinh doanh, doanh doanh
dung hoang » dang hoang, dung hong, khung hoang
hoang van » hang va
van quang » van quan, tran quang, van tuan
quang tri » quan tri
dung dat » dung va, dung tai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu tinh - ((dung dat) or (hanh doanh)) ung dung hoang van quang tri~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu tinh - ((dung dat) OR (hanh doanh)) ung dung hoang van quang tri.
• Adding a wildcard symbol may retrieve word variants: toc thieu tinh - ((dung dat) or (hanh doanh)) ung dung hoang van quang tri*.