Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
cach thuc » anh thuc, cac thu
hang dau » hang va, hang tai
ly nang » ky nang, ly hang, ly vang
hieu ve » hieu va, hieu van
ve cach » va cach, ve cac, ve canh
thuc va » thuc vat, thuc dan, thuc day
va hang » van hang, va nang, va lang
dau cua » dai cua, day cua, cau cua
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, v nang, may nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach ((y nang) OR (ly nang)) xa hoi. hieu ve cach thuc va hang dau cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach ((y nang) OR (ly nang)) xa hoi. hieu ve cach thuc va hang dau cua tre".
• Adding a wildcard symbol may retrieve word variants: thuoc sach ((y nang) OR (ly nang)) xa hoi. hieu ve cach thuc va hang dau cua tre*.