Perhaps you should try some spelling variations:
lang van » dang van, tang van, hoang van
van hanh » van thanh, ban hanh, van anh
hanh va » hang va, hanh vi
duc van » duc va, duc tan, duc manh
cam duc » cam xuc, cao duc, pham duc
hieu va » lieu va, hieu qua
te sach » toc sach
nang xa » lang xa, nang ma, mang xa
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
va cua » va chua, via cua, ca cua

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

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