Perhaps you should try some spelling variations:
tuan luc » than luc, tuan khuc, nhan luc
van tuan » van quan, van ban, anh tuan
hieu van » hieu va, thien van, lieu va
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
lang xa » lang ha, dang xay, lang van
cam ky » cac ky
va dan » ca dan, va dao, va dau
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: tu ((cam ky) or (cao ky)) lang xa hoi. hieu van tuan luc ((va hanh) or (va dan)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((cam ky) OR (cao ky)) lang xa hoi. hieu van tuan luc ((va hanh) OR (va dan)) di cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((cam ky) or (cao ky)) lang xa hoi. hieu van tuan luc ((va hanh) or (va dan)) di cua tre*.