Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
cua tre » cua te, cua triet, dua tren
hanh ve » hanh vi, hanh va, hanh kem
va hanh » van hanh, va thanh, va danh
thuc va » thuc vat, thuc dan, thuc day
sach ky » sac ky, sach y, sach ty
su sach » so sach, vu sach
va pham » van pham, va phat, va phap
lang xa » lang ha, dang xay, lang van
mang xa » mang may, dang xay, mang cua
cuu tre » cau tren, cau treo

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 ((mang xa) or (lang xa)) hoi. lieu va pham thuc va hanh ve ((cua tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((mang xa) OR (lang xa)) hoi. lieu va pham thuc va hanh ve ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky ((mang xa) or (lang xa)) hoi. lieu va pham thuc va hanh ve ((cua tre) OR (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: su sach ky ((mang xa) or (lang xa)) hoi. lieu va pham thuc va hanh ve ((cua tre) OR (cuu tre))*.