Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
hanh tranh » canh tranh, hanh trinh, hanh trang
doi chieu » doc hieu, doi chi, ho chieu
cua trong » cua truong, cua trung, ca trong
qua trong » quan trong, qua trinh, qua song
cong dan » cong san, cong tan, huong dan
dan khan » dan khanh, dan chan, dan than
khan cap » khan ap, than cap, khoan cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (doi chieu)) xanh - hanh tranh ((cua trong) OR (qua trong)) cong dan khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (doi chieu)) xanh - hanh tranh ((cua trong) OR (qua trong)) cong dan khan cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (doi chieu)) xanh - hanh tranh ((cua trong) OR (qua trong)) cong dan khan cap".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (doi chieu)) xanh - hanh tranh ((cua trong) OR (qua trong)) cong dan khan cap*.