Perhaps you should try some spelling variations:
nghiem thuc » nghiem thuoc, nghiep thuc, nhiem thuc
thuc cong » thuoc cong, thu cong, chuc cong
hanh hoc » thanh hoc, hinh hoc, anh hoc
cong tac » cong ty
ninh hoa » minh hoa, tinh hoa, hinh hoa
danh hoa » thanh hoa, khanh hoa, nganh hoa
gian dan » gian lang
lu hanh » luu hanh, du hanh, ly hanh
cu gian » cua giang, cuu giai, cau giay
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: lu hanh hoc tap, nghiem thuc cong tac ((ninh hoa) or (danh hoa)) hoc xa hoi cu gian dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lu hanh hoc tap, nghiem thuc cong tac ((ninh hoa) OR (danh hoa)) hoc xa hoi cu gian dan.
• Adding a wildcard symbol may retrieve word variants: lu hanh hoc tap, nghiem thuc cong tac ((ninh hoa) or (danh hoa)) hoc xa hoi cu gian dan*.