Perhaps you should try some spelling variations:
hoang van » hang va
lang van » dang van, tang van, giang van
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va hanh » van hanh, va thanh, va danh
cuu tre » cua tre, cau tren, cau treo
te san » te ban, ke san, tu san
san ky » sang ky, van ky, dan ky
soc va » hoc va, loc va, doc va
cua tu » cua tuc, cua su, cua cu

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

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