Perhaps you should try some spelling variations:
thanh va » thanh van, hanh va, thanh ha
da thanh » dao thanh, dat thanh, dam thanh
su sach » so sach
hieu ve » hieu va, hieu van
cuu tre » cua tre, cau tren, cau treo
ty nang » ky nang, ty xang, ty hang
vu sach » vu bach, vu khach
nam tu » nam thu, nam thuc
va cuu » va cau, va chu, va huu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) OR (vu sach)) ty nang x hoi. hieu ve ((nam tu) or (am thuc)) da thanh va cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) ty nang x hoi. hieu ve ((nam tu) OR (am thuc)) da thanh va cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (vu sach)) ty nang x hoi. hieu ve ((nam tu) or (am thuc)) da thanh va cuu tre*".