Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
tham thuc » nham thuc, tam thuc, thai thuc
thanh de » hanh de, thanh ve, thanh do
va thanh » gia thanh, ban thanh, va tinh
tang van » dang van, hoang van, trong van
sach ky » sac ky, sach y, sach kem
van hoi » van hoa, van hoc, van hoe
sach ty » sach y, sach tu, sach thu
de cua » le cua, te cua, dieu cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ky) OR (sach ty)) tang van hoi. lieu va ((tham thuc) or (pham thuc)) va thanh de cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sach ty)) tang van hoi. lieu va ((tham thuc) OR (pham thuc)) va thanh de cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ky) OR (sach ty)) tang van hoi. lieu va ((tham thuc) or (pham thuc)) va thanh de cua te".
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) OR (sach ty)) tang van hoi. lieu va ((tham thuc) or (pham thuc)) va thanh de cua te*.