Perhaps you should try some spelling variations:
thanh loai » thanh loi, thanh oai, thanh hoai
vu khach » vu khanh, vu khac, vay khach
khach ty » sach ty
thuc dan » thuc hanh, hoc dan, thuc vat
loai cua » lai cua, loai ca, loai chat
cua nuoc » cua quoc, cua nguoi, cua thuoc
ty lang » tay lang, ty xang, ty hang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
thuc va » thuc vat, thuc day
va nam » van nam, ha nam, va nay

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu khach ty lang xa hoi. hieu va nam ((thuc va) or (thuc dan)) thanh loai cua nuoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu khach ty lang xa hoi. hieu va nam ((thuc va) OR (thuc dan)) thanh loai cua nuoc.
• Adding a wildcard symbol may retrieve word variants: vu khach ty lang xa hoi. hieu va nam ((thuc va) or (thuc dan)) thanh loai cua nuoc*.