Perhaps you should try some spelling variations:
thien van » thi van
dan dinh » dang dinh, doan dinh, van dinh
sach kem » hanh kem
thuc dan » thuc hanh, hoc dan, thuc vat
cau thuc » cau truc, cuu thuc, can thuc
dinh va » dinh van, dinh ve, tinh va
van cau » van dau, van hau, van chat
sach ky » sac ky, sach ty, sach hay
lang xa » lang ha, dang xay, lang van
cao tre » cho tre, choi tre
va cao » va cac, va co, va dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((((sach ky) OR (sach kem))) or (sach y)) lang xa hoi. thien van cau thuc dan dinh va cao tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((((sach ky) OR (sach kem))) OR (sach y)) lang xa hoi. thien van cau thuc dan dinh va cao tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((((sach ky) OR (sach kem))) or (sach y)) lang xa hoi. thien van cau thuc dan dinh va cao tre".
• Adding a wildcard symbol may retrieve word variants: te ((((sach ky) OR (sach kem))) or (sach y)) lang xa hoi. thien van cau thuc dan dinh va cao tre*.