Perhaps you should try some spelling variations:
nghien huu » nghien cuu, nguyen huu, nhiem huu
nganh cong » nhanh chong, thanh cong
anh thuc » am thuc, dan thuc, anh tu
thuc tap » tuc tap, thuc thai, thuc vat
toan hoc » toan khoa, hoa hoc, tin hoc
cong hoc » dong hoc, cong hoa, cong coc
van hoc » van hoa
hoc mai » hoc ma, hoc dai, hoc bai
mai hoi » mai khoi, dai hoi, lai hoi
va phap » va phat, ban phap
tu anh » tu hanh, tu manh, thu anh

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu anh thuc tap, nghien huu ((toan hoc) OR (van hoc)) nganh cong hoc mai hoi va phap day~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu anh thuc tap, nghien huu ((toan hoc) OR (van hoc)) nganh cong hoc mai hoi va phap day".
• Adding a wildcard symbol may retrieve word variants: tu anh thuc tap, nghien huu ((toan hoc) OR (van hoc)) nganh cong hoc mai hoi va phap day*.