Perhaps you should try some spelling variations:
nhiem hieu » nghiep hieu, nhiem huu, nhien lieu
van thanh » ban thanh, van tuan
thanh van » thanh san, thanh toan, thanh phan
tinh hoc » sinh hoc, tin hoc, hinh hoc
pho khoa » phu khoa, pha khoa, tho khoa
khoa hoc » hoa hoc
te tinh » tue tinh, tre tinh, ve tinh
mot hoc » mon hoc, mo hoc, bot hoc
hoi van » hoi va, hoi dan, hai van
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 tinh hoc tap, nhiem hieu ((mot hoc) OR (mot goc)) pho khoa hoc xa hoi van thanh van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te tinh hoc tap, nhiem hieu ((mot hoc) OR (mot goc)) pho khoa hoc xa hoi van thanh van".
• Adding a wildcard symbol may retrieve word variants: te tinh hoc tap, nhiem hieu ((mot hoc) OR (mot goc)) pho khoa hoc xa hoi van thanh van*.