Perhaps you should try some spelling variations:
trong van » trong cac
tang van » dang van, hoang van, tang luan
van tham » van thanh, van tuan, van chat
co sach » bo sach, cuon sach, hoc sach
va tham » va cham, va thanh, va thuat
va hanh » van hanh, va thanh, va danh
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: co sach thieu ((tang van) or (trong van)) hoi. hieu ((va tham) OR (van tham)) xuc va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co sach thieu ((tang van) OR (trong van)) hoi. hieu ((va tham) OR (van tham)) xuc va hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "co sach thieu ((tang van) or (trong van)) hoi. hieu ((va tham) OR (van tham)) xuc va hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: co sach thieu ((tang van) or (trong van)) hoi. hieu ((va tham) OR (van tham)) xuc va hanh vi cua te*.