Perhaps you should try some spelling variations:
nganh thuong » doanh thuong, nang thuong, khanh thuong
anh thuong » anh huong, hang thuong, tnhh thuong
cac thoi » cac toi, cac hop, cac tro
thoi tap » toi tap, hoc tap, thoi dai
huu toan » huu tuan, cuu toan, huy toan
toan hoc » toan khoa, van hoc, hoa hoc
dan nhan » danh nhan, dan chan, van nhan
nhan tai » hang tai, van tai, toan tai
hoi dan » hoa dan, hoc dan, hoi dap
so cac » sao cac, so cap, o cac
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: so cac thoi tap, nhiem huu toan hoc ((nganh thuong) OR (anh thuong)) hoc xa hoi dan nhan tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so cac thoi tap, nhiem huu toan hoc ((nganh thuong) OR (anh thuong)) hoc xa hoi dan nhan tai".
• Adding a wildcard symbol may retrieve word variants: so cac thoi tap, nhiem huu toan hoc ((nganh thuong) OR (anh thuong)) hoc xa hoi dan nhan tai*.