Perhaps you should try some spelling variations:
thanh loi » thanh hoa, thanh hai, thanh lap
cua nuoc » cua quoc, cua nguoi, cua thuoc
thuc dan » thuc hanh, hoc dan, thuc vat
sach ty » sach y, sach tu, sach thu
thuc va » thuc vat, thuc day
lang xa » lang ha, dang xay, lang van
ty lang » tay lang, ty xang, ty hang
loi cua » loai cua, hoi cua, doi cua
vu sach » vu bach, su sach, vu khach
va nam » van 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 sach ty lang xa hoi. hieu ((va nam) OR (ha nam)) ((thuc va) or (thuc dan)) thanh loi cua nuoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ty lang xa hoi. hieu ((va nam) OR (ha nam)) ((thuc va) OR (thuc dan)) thanh loi cua nuoc.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ty lang xa hoi. hieu ((va nam) OR (ha nam)) ((thuc va) or (thuc dan)) thanh loi cua nuoc".
• Adding a wildcard symbol may retrieve word variants: vu sach ty lang xa hoi. hieu ((va nam) OR (ha nam)) ((thuc va) or (thuc dan)) thanh loi cua nuoc*.