Perhaps you should try some spelling variations:
va thieu » va thiet, va hieu, va tieu
han thai » han tai, ban thai, van thai
ve chim » va chim, ve cham, ve chinh
thai va » thai van
vu cham » va cham, vu kham, tu cham
vu sach » vu bach, su sach, vu khach
ly nang » ky nang, ly hang, ly vang
y nang » ky nang, v nang, may nang
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 ((y nang) OR (ly nang)) xa hoi. hieu ((ve chim) or (vu cham)) xuc va han thai va thieu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ((y nang) OR (ly nang)) xa hoi. hieu ((ve chim) OR (vu cham)) xuc va han thai va thieu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ((y nang) OR (ly nang)) xa hoi. hieu ((ve chim) or (vu cham)) xuc va han thai va thieu".
• Adding a wildcard symbol may retrieve word variants: vu sach ((y nang) OR (ly nang)) xa hoi. hieu ((ve chim) or (vu cham)) xuc va han thai va thieu*.