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
nang dua » nang suat, nang quan, nang luc
cong tap » cuong tap, cong tac, cong tan
tap toan » tap doan, tap quan, bai toan
toan cau » toan cao, toan ban, 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 tap toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - ganh ((nang dua) OR (nang du)) khong cong tap toan cau".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - ganh ((nang dua) OR (nang du)) khong cong tap toan cau*.