Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh chua » trinh chuan, trinh cua, trinh chu
quang tran » quang tuan, quang trung, quang thanh
dong cong » duong cong, dang cong, cong cong
dung cong » dung trong
hoc dieu » hoc thieu, hoc hien
tran huu » tran duc

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc dieu hanh - hanh trinh chua ((dong cong) or (dung cong)) quang tran huu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc dieu hanh - hanh trinh chua ((dong cong) OR (dung cong)) quang tran huu*.