Perhaps you should try some spelling variations:
lang van » dang van, tang van, hoang van
lang xa » lang ha, dang xay
cua tre » cua te, cua triet, dua tren
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
cam loc » cam lo
hieu ve » hieu va, hieu van
cuu tre » cau tren, cau treo
ve cam » ve cham, ve cac, va cam
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: tu cac ky ((lang xa) or (lang van)) hoi. hieu ve cam loc va danh vi ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky ((lang xa) OR (lang van)) hoi. hieu ve cam loc va danh vi ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: tu cac ky ((lang xa) or (lang van)) hoi. hieu ve cam loc va danh vi ((cua tre) or (cuu tre))*.