Perhaps you should try some spelling variations:
gianh lang » gian lang, gian lan, dinh lang
cach thoi » cac thoi, cach noi
cach thuc » anh thuc, cac thu
cuu cong » cua cong, thu cong, cac cong
cong coc » cong cuoc, cong cac, cong co
coc toan » ngoc toan, coc khoan, quoc toan
toan hoa » toan khoa, toan hoat, toan hoc
va gianh » va gian, van giang, va giai
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((cach thoi) OR (cach thuc)) tap, nghien cuu cong coc toan hoa hoc xa hoi va gianh lang~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((cach thoi) OR (cach thuc)) tap, nghien cuu cong coc toan hoa hoc xa hoi va gianh lang".
• Adding a wildcard symbol may retrieve word variants: tu ((cach thoi) OR (cach thuc)) tap, nghien cuu cong coc toan hoa hoc xa hoi va gianh lang*.