Perhaps you should try some spelling variations:
thue lang » thu hang, phu lang, que lang
hoc sach » hoc sinh, hoc cac, hoc anh
thu bang » thu ban, thu hang, chu bang
hanh dai » hanh tai, hanh dao, vanh dai
hieu va » lieu va, hieu qua
cac duc » cac du, cao duc, cac dac
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sach ((thue lang) or (thu bang)) xa hoi. hieu va cac duc va hanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach ((thue lang) OR (thu bang)) xa hoi. hieu va cac duc va hanh dai cua tre.
• Adding a wildcard symbol may retrieve word variants: hoc sach ((thue lang) or (thu bang)) xa hoi. hieu va cac duc va hanh dai cua tre*.