Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
hanh tranh » canh tranh, hanh trinh, hanh trang
quan trong » gian trong
qua trinh » qua kinh
duong van » duong va, luong va, dang van
ho chieu » hoc thieu, doi chieu, mot chieu
van chat » cao chat
chat cao » chat co, chat cho, chat bao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) OR (theo chieu)) sang - hanh tranh ((qua trinh) or (quan trong)) duong van chat cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) sang - hanh tranh ((qua trinh) OR (quan trong)) duong van chat cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (theo chieu)) sang - hanh tranh ((qua trinh) or (quan trong)) duong van chat cao*".