Perhaps you should try some spelling variations:
day thanh » dao thanh, dat thanh, da thanh
thanh di » thanh doi, thanh de, thanh do
thuc day » thuc dan, thuc vat
sach ky » sac ky, sach ty, sach kem
ve pham » vi pham, ve phan, ve phat
cao hoi » cau hoi, co hoi, cao hoc
v pham » vi pham, d pham
di cua » dai cua, doi cua, de 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: thu ((sach ky) or (sach y)) nang cao hoi. hieu ((ve pham) OR (v pham)) thuc day thanh di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach ky) OR (sach y)) nang cao hoi. hieu ((ve pham) OR (v pham)) thuc day thanh di cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach ky) or (sach y)) nang cao hoi. hieu ((ve pham) OR (v pham)) thuc day thanh di cua te".
• Adding a wildcard symbol may retrieve word variants: thu ((sach ky) or (sach y)) nang cao hoi. hieu ((ve pham) OR (v pham)) thuc day thanh di cua te*.