Perhaps you should try some spelling variations:
nganh cong » nhanh chong
hoc nganh » hoc nhanh
cong thai » cong hai, hong thai, cong thanh
cong khi » khong khi, co khi, cong ha
thu hoan » thi hoan, thu hoach, thu ha
su hoan » su han, vu hoan, cuu hoan
su hoc » tu hoc, du hoc, so hoc

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

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