Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc thiet » hoc thieu, hoc thuyet, hoc hien
doi chieu » doc hieu, doi chi, mot chieu
tranh cua » doanh cua, manh cua
cua trong » cua truong, cua trung, qua trong
tran manh » tran minh, tran thanh, tran van
cong dan » cong san, cong tan, huong dan
dan tran » dang tran, tan tran, dan than

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thiet) OR (doi chieu)) tach - hanh tranh cua trong cong dan tran manh~.
• Adding a wildcard symbol may retrieve word variants: ((hoc thiet) or (doi chieu)) tach - hanh tranh cua trong cong dan tran manh*.