Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
khong cong » thong cong, khong cang, chong cong
cong thanh » dong thanh, cong trinh, cong tan
nang dua » nang suat, nang quan, nang luc
toan ban » van ban
toan cao » toan tap
nang du » nang tu, nang luc, nang doc

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 - ganh ((nang dua) or (nang du)) khong cong thanh ((toan ban) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - ganh ((nang dua) OR (nang du)) khong cong thanh ((toan ban) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - ganh ((nang dua) or (nang du)) khong cong thanh ((toan ban) or (toan cao))*.