Perhaps you should try some spelling variations:
thuat tach » thuat sach, thuat mach, thuat tac
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
tach hon » cach hoan, tach dong, tam hon
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
khoa hoc » hoa hoc
phan van » pham van, thanh van, luan van
hon tap » hoc tap, han tap, con tap
va phan » van phan, va phat, va phap
ma hoi » mai hoi, ma hoa, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat tach hon tap, nghien cuu cong hoc nganh khoa hoc ((ma hoi) or (xa hoi)) va phan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat tach hon tap, nghien cuu cong hoc nganh khoa hoc ((ma hoi) OR (xa hoi)) va phan van.
• Adding a wildcard symbol may retrieve word variants: thuat tach hon tap, nghien cuu cong hoc nganh khoa hoc ((ma hoi) or (xa hoi)) va phan van*.