Perhaps you should try some spelling variations:
lang van » dang van, tang van, hoang van
cua tre » cua te, cua triet, dua tren
ky lang » ky nang, ky dang, ky tang
van hoi » van hoa, van hoc, van hoe
hieu va » lieu va, hieu qua
cuu tre » cau tren, cau treo
va hanh » van hanh, va thanh, va danh
ke san » ke dan
san ky » sang ky, van ky, dan ky
ham so » nam so

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

• Performing a fuzzy search may retrieve terms with similar spellings: ke san ky lang van hoi. hieu va ((ham so) or (cham soc)) va hanh vi ((cuu tre) or (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ke san ky lang van hoi. hieu va ((ham so) OR (cham soc)) va hanh vi ((cuu tre) OR (cua tre)).
• Adding a wildcard symbol may retrieve word variants: ke san ky lang van hoi. hieu va ((ham so) or (cham soc)) va hanh vi ((cuu tre) or (cua tre))*.