Perhaps you should try some spelling variations:
cuu thanh » cuu tinh
thanh van » thanh san, thanh toan, thanh phan
khoa hoc » hoa hoc
hop tap » hoc tap, hop tac, hop tai
cuu mon » cuu mo, cuu cong, cuu tong
cuu mot » cua mot, cuu mo, huu mot
hoc may » hoc ma
hoc da » hoc dan, hoc dai, hoc dat
may ho » tay ho, mau ho, may do
ho cuu » ho chu, ho cua, so cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac hop tap, nghien ((cuu mon) or (cuu mot)) hoc da khoa hoc may ho cuu thanh van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac hop tap, nghien ((cuu mon) OR (cuu mot)) hoc da khoa hoc may ho cuu thanh van.
• Adding a wildcard symbol may retrieve word variants: tu cac hop tap, nghien ((cuu mon) or (cuu mot)) hoc da khoa hoc may ho cuu thanh van*.