Perhaps you should try some spelling variations:
va thieu » va thiet, va hieu, va tieu
phap tai » pham tai, phap thi, phap tang
van tham » van thanh, van tuan, van chat
van cham » van chat, va cham, van pham
nang xa » nang x, lang xa, nang ma
su sach » so sach, vu sach
va phap » va phat, ban phap
tu sach » thu sach, te sach, tu cach
xuc va » duc va, tuc va, luc va
tai va » thai va, mai va, tri va

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

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