Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
cac nganh » hoc nganh
nang cong » nang song, bang cong, hang cong
dang cong » dung cong
cong khi » cong thai, khong khi, co khi
so cac » sao cac, so cap, o cac
su cao » cu cao, vu cao, su co

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( so cac nganh cong khi đong luc ) or ( su cao ((nang cong) OR (dang cong)) khi đong luc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( so cac nganh cong khi đong luc ) OR ( su cao ((nang cong) OR (dang cong)) khi đong luc ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( so cac nganh cong khi đong luc ) or ( su cao ((nang cong) OR (dang cong)) khi đong luc ))*".