Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
phan hung » phan chung, phan ung, phan hong
cach hoc » cach thuc, cach thoi, dich hoc
hoc phan » hoc dan, hoc pho
hung hoc » chung hoc, khung hoc, nhung hoc
phan dau » phan tu, hang dau
tu cach » tu cac
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
may hoi » may thoi, tay hoi, may hmi
mai hoi » mai khoi, dai hoi, lai hoi

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 hoc tap, nghien cuu mon hoc phan hung hoc ((may hoi) OR (mai hoi)) thanh phan dau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cach hoc tap, nghien cuu mon hoc phan hung hoc ((may hoi) OR (mai hoi)) thanh phan dau".
• Adding a wildcard symbol may retrieve word variants: tu cach hoc tap, nghien cuu mon hoc phan hung hoc ((may hoi) OR (mai hoi)) thanh phan dau*.