Perhaps you should try some spelling variations:
hoc nganh » hoc nhanh
so nganh » so ngan, moi nganh, doi nganh
su triet » su viet, su tien, ve triet
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
ve pham » vi pham, v pham, ve phat
ve phan » va phan, ke phan, ve phat
va danh » va dinh, va dan, va hanh
danh ki » danh di, danh kien, danh gia
ma hoi » mai hoi, xa hoi, ma hoa
ki su » ky su

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so nganh) OR (hoc nganh)) ky tang ma hoi. hieu ((ve pham) or (ve phan)) duc va danh ki su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so nganh) OR (hoc nganh)) ky tang ma hoi. hieu ((ve pham) OR (ve phan)) duc va danh ki su triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so nganh) OR (hoc nganh)) ky tang ma hoi. hieu ((ve pham) or (ve phan)) duc va danh ki su triet*".