Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
thi hanh » thi thanh
van hanh » van thanh, ban hanh, van anh
hanh di » hanh vi, hanh de, hang di
xuc van » duc van, luc van, vuc van
nam xuc » cam xuc, nam xua, nam thuc
thi lan » thi nang, thi lien
cua tre » cua te, cuu tre, cua triet
thi van » thi nang
lang ha » long ha
sach o » sach lo, sac o, sach y
ha hoi » hoa hoi, ha noi, xa hoi
o lang » hoa lang, hoi lang
di cua » dai cua, doi cua, de cua

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 ha hoi. ((((thi van) or (thi hanh))) or (thi lan)) nam xuc van hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach o lang ha hoi. ((((thi van) OR (thi hanh))) OR (thi lan)) nam xuc van hanh di cua tre.
• Adding a wildcard symbol may retrieve word variants: thu sach o lang ha hoi. ((((thi van) or (thi hanh))) or (thi lan)) nam xuc van hanh di cua tre*.