Perhaps you should try some spelling variations:
nghien cac » nghiep cach, nghien cuu, nghiep cay
nganh khoa » nganh hoa, nganh khong, doanh khoa
cach thuc » anh thuc, cac thu
thuc thai » thuc pham, toc thai, thuc thuc
thu cach » thuc cach, thu canh, tu cach
cong hoc » cong hoa, cong coc, cong ho
dong hoc » dong co, dong luc
khoa hoc » hoa hoc
phan van » pham van, thanh van, luan van
ca phan » cac phan, cao phan, cap phan
ma hoi » mai hoi, xa hoi, ma hoa
hoi ca » hoi cua, hoi cac, hoi cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu cach thuc thai, nghien cac ((cong hoc) OR (dong hoc)) nganh khoa hoc ma hoi ca phan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu cach thuc thai, nghien cac ((cong hoc) OR (dong hoc)) nganh khoa hoc ma hoi ca phan van".
• Adding a wildcard symbol may retrieve word variants: thu cach thuc thai, nghien cac ((cong hoc) OR (dong hoc)) nganh khoa hoc ma hoi ca phan van*.