Perhaps you should try some spelling variations:
cach thoi » cac thoi, cach thuc
dung khoa » dung cho
phan dang » phan dau, phan cong, nhan dan
cach noi » hanh noi, anh noi, cau noi
hoc dung » hoc ung, hoc dan, tac dung
khoa hoc » hoa hoc
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
va phan » van phan, va phat, va phap
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: te ((cach thoi) OR (cach noi)) dai, nghien cuu mon hoc dung khoa hoc xa hoi va phan dang~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((cach thoi) OR (cach noi)) dai, nghien cuu mon hoc dung khoa hoc xa hoi va phan dang".
• Adding a wildcard symbol may retrieve word variants: te ((cach thoi) OR (cach noi)) dai, nghien cuu mon hoc dung khoa hoc xa hoi va phan dang*.