Perhaps you should try some spelling variations:
thien thanh » tien thanh, chien tranh, dien thanh
hanh tranh » canh tranh, hanh trinh, hanh trang
dung huong » dung thuong, dung phuong, dong huong
huong dang » huong dan, duong dang, huong dong
hien hanh » dieu hanh
tranh cua » doanh cua, manh cua
cua dung » cua dang, cua dong, qua dung
dang van » hoang van, hang va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien thanh) or (((thi thanh) or (hien hanh)))) - hanh tranh cua dung huong dang van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien thanh) OR (((thi thanh) OR (hien hanh)))) - hanh tranh cua dung huong dang van ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien thanh) or (((thi thanh) or (hien hanh)))) - hanh tranh cua dung huong dang van ban*.