Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
trang cua » tranh cua, tang cua, trung cua
dung cong » dung trong
cong doan » cong dan, cong hoan, dong doanh
doan phan » doanh phan, toan phan, dan phan
cua dung » cua dang, cua dong, qua dung
hoc thi » hoc thai, hoc chi, hoc phi
hoc khi » hoc khoi, hoc khia, hoc ki
hoc tai » hoc dai, hoc tap, hoc bai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((hoc thi) or (hoc khi))) or (hoc tai)) thanh - hanh trang cua dung cong doan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((hoc thi) OR (hoc khi))) OR (hoc tai)) thanh - hanh trang cua dung cong doan phan tu.
• Adding a wildcard symbol may retrieve word variants: ((((hoc thi) or (hoc khi))) or (hoc tai)) thanh - hanh trang cua dung cong doan phan tu*.