Perhaps you should try some spelling variations:
va thieu » va thiet, va hieu, va tieu
han thai » han tai, ban thai, van thai
thai va » thai van
vu cham » vu kham, tu cham, qua cham
vu sach » vu bach, su sach, vu khach
va cham » va chat, va tham
nang xa » lang xa, nang ma, mang xa
sach v » sach va, sach y, sach 2
xuc va » duc va, tuc va, luc va
va han » va phan, van han, va hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach v ((nang xa) OR (nang x)) hoi. hieu ((va cham) or (vu cham)) xuc va han thai va thieu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach v ((nang xa) OR (nang x)) hoi. hieu ((va cham) OR (vu cham)) xuc va han thai va thieu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach v ((nang xa) OR (nang x)) hoi. hieu ((va cham) or (vu cham)) xuc va han thai va thieu".
• Adding a wildcard symbol may retrieve word variants: vu sach v ((nang xa) OR (nang x)) hoi. hieu ((va cham) or (vu cham)) xuc va han thai va thieu*.