Perhaps you should try some spelling variations:
hanh dai » hanh tai, hanh dao, vanh dai
nang ma » tang ma, sang ma, nang cao
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
cac loc » cac lop, cac toc, cac hoc
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
tai ky » thai ky, trai ky, sai ky
ve cac » va cac, vien cac
loc va » hoc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te tai ky ((nang ma) or (lang xa)) hoi. hieu ve cac loc va hanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te tai ky ((nang ma) OR (lang xa)) hoi. hieu ve cac loc va hanh dai cua tre.
• Adding a wildcard symbol may retrieve word variants: te tai ky ((nang ma) or (lang xa)) hoi. hieu ve cac loc va hanh dai cua tre*.