Perhaps you should try some spelling variations:
nghiem thuc » nghiem thuoc, nghiep thuc, nhiem thuc
thuc dong » thuoc dong, thuc dung, phuc dong
nganh hoa » thanh hoa, khanh hoa, ninh hoa
dong hoa » dong hoc, dong co
danh hoa » thanh hoa, khanh hoa, danh cho
nhan dan » phan dau, gian dan, nhan tai
ve sinh » vi sinh, va sinh
cu nhan » ca nhan
hoc xa » hoc ma
hoi cu » hoi chu, hoi cua, hoi cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ve sinh hoc tap, nghiem thuc dong hoa ((danh hoa) or (nganh hoa)) hoc xa hoi cu nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ve sinh hoc tap, nghiem thuc dong hoa ((danh hoa) OR (nganh hoa)) hoc xa hoi cu nhan dan.
• Adding a wildcard symbol may retrieve word variants: ve sinh hoc tap, nghiem thuc dong hoa ((danh hoa) or (nganh hoa)) hoc xa hoi cu nhan dan*.