Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh vai » thanh hai, thanh van, thanh tai
sach ty » sach y, sach tu, sach thu
cuu tre » cua tre, cau tren, cau treo
vu sach » vu bach, su sach, vu khach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ty nang » ky nang, ty xang, ty hang
ly ban » uy ban, lo ban
ly bai » ly dai, ly hai
ve cac » va cac, vien cac

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 ty nang xa hoi. hieu ve cac ((ly ban) OR (ly bai)) thanh vai ((cuu tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ty nang xa hoi. hieu ve cac ((ly ban) OR (ly bai)) thanh vai ((cuu tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ty nang xa hoi. hieu ve cac ((ly ban) OR (ly bai)) thanh vai ((cuu tre) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: vu sach ty nang xa hoi. hieu ve cac ((ly ban) OR (ly bai)) thanh vai ((cuu tre) or (cua triet))*.