Perhaps you should try some spelling variations:
nhuong cong » nhung cong, luong cong, duong cong
van nhuong » van chuong, van phuong, van huong
canh trinh » canh tranh, hanh trinh, canh tinh
trinh van » trinh han, trinh quan, trinh toan
chu lang » chi lang, chu bang, cu lang
cho lang » cho hang, chi lang, cho mang
cong san » cong tac
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu lang) OR (cho lang)) - canh trinh van nhuong cong san ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu lang) OR (cho lang)) - canh trinh van nhuong cong san ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu lang) OR (cho lang)) - canh trinh van nhuong cong san ((toan cau) or (toan tap))".
• Adding a wildcard symbol may retrieve word variants: theo ((chu lang) OR (cho lang)) - canh trinh van nhuong cong san ((toan cau) or (toan tap))*.