Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hanh vai » hanh vi, hanh va, hanh tai
van hanh » van thanh, ban hanh, van anh
thuc van » thuc vat, thuc dan, thuc va
nam thuc » nam thuoc, am thuc, nam thu
thi hanh » thi thanh
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
thi lan » thi nang, thi lien
thi van » thi nang
lang xa » lang ha, dang xay, lang van
sach o » sach lo, sac o, sach y
o lang » hoa lang, hoi lang

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 o lang xa hoi. ((((thi van) OR (thi hanh))) or (thi lan)) nam thuc van hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach o lang xa hoi. ((((thi van) OR (thi hanh))) OR (thi lan)) nam thuc van hanh vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach o lang xa hoi. ((((thi van) OR (thi hanh))) or (thi lan)) nam thuc van hanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach o lang xa hoi. ((((thi van) OR (thi hanh))) or (thi lan)) nam thuc van hanh vai cua tre*.