Perhaps you should try some spelling variations:
thanh di » thanh doi, thanh de, thanh do
va thanh » gia thanh, ban thanh, va tinh
vu sach » vu bach, su sach, vu khach
ty danh » ty doanh, ty anh, te danh
ky danh » ky anh, ky dang
xay hoi » xa hoi, tay hoi, cay phoi
hieu ve » hieu va, hieu van
cac loc » cac lop, cac toc, cac hoc
ve cac » va cac, vien cac
loc va » hoc va, luc va
cua tu » cua tuc, cua su, cua cu

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 danh) or (ky danh)) xay hoi. hieu ve cac loc va thanh di ((cua te) OR (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ((ty danh) OR (ky danh)) xay hoi. hieu ve cac loc va thanh di ((cua te) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ((ty danh) or (ky danh)) xay hoi. hieu ve cac loc va thanh di ((cua te) OR (cua tu))".
• Adding a wildcard symbol may retrieve word variants: vu sach ((ty danh) or (ky danh)) xay hoi. hieu ve cac loc va thanh di ((cua te) OR (cua tu))*.