Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
canh trinh » canh tranh, canh tinh, anh trinh
hanh trinh » canh tranh, hanh chinh
nang cong » nang song, dang cong, bang cong
cong tan » cong tac, cong san, cong thanh
toan tai » toan tap, doanh tai, toan ban
toan cao » toan ban, toan tap
va nang » van nang, da nang, cam nang

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