Perhaps you should try some spelling variations:
thieu nang » thien nang, thieu khang, thieu quang
xuan trung » xuan truong, quang trung, doan trung
hoc thieu » toc thieu, hoc hien
cua trung » cua truong, cua nhung, ba trung
cong van » cong vang, cong san, song van
van phan » van phong, van thanh, luan phan
phan dau » phan tu, hang dau

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 nang - cach mang ((cua trung) or (xuan trung)) cong van phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu nang - cach mang ((cua trung) OR (xuan trung)) cong van phan dau*.