Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
thuat san » thuat toan, thuat song, thuat lanh
san nganh » dang nganh, sang ngang, cac nganh
khanh hoa » thanh hoa, hang hoa
cong khi » cong thai, khong khi, co khi
thu hoc » tu hoc, tru hoc, thu hoach
thu hoi » thu hoai, thu phoi, thu hai
hoa hoi » khoa hoi, hoa hoc, hoa doi

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( thuat san nganh cong khi đong luc ) or ( ((thu hoc) OR (thu hoi)) khanh hoa hoi đong luc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thuat san nganh cong khi đong luc ) OR ( ((thu hoc) OR (thu hoi)) khanh hoa hoi đong luc )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( thuat san nganh cong khi đong luc ) or ( ((thu hoc) OR (thu hoi)) khanh hoa hoi đong luc ))".
• Adding a wildcard symbol may retrieve word variants: (( thuat san nganh cong khi đong luc ) or ( ((thu hoc) OR (thu hoi)) khanh hoa hoi đong luc ))*.