Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
canh manh » canh tranh, cach mang, van manh
lanh manh » lanh tranh, lan anh, van manh
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap

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 tinh - ((canh manh) or (lanh manh)) ((cua nhung) OR (va nhung)) cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - ((canh manh) OR (lanh manh)) ((cua nhung) OR (va nhung)) cong tan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - ((canh manh) or (lanh manh)) ((cua nhung) OR (va nhung)) cong tan toan cao".
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - ((canh manh) or (lanh manh)) ((cua nhung) OR (va nhung)) cong tan toan cao*.