Perhaps you should try some spelling variations:
thanh va » thanh van, hanh va, thanh ha
va thanh » gia thanh, ban thanh, va tinh
cac thuc » cach thuc, can thuc, cay thuc
so sach » bo sach, co sach, hoc sach
cac thu » cach thuc, cac thoi
hieu va » lieu va, hieu qua
so sanh » do sanh
nang xa » nang x, lang xa, nang ma
y nang » ky nang, ly nang, v nang
va cua » va chua, via cua, ca cua
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so sach) or (so sanh)) y nang xa hoi. hieu va ((cac thuc) or (cac thu)) va thanh va cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (so sanh)) y nang xa hoi. hieu va ((cac thuc) OR (cac thu)) va thanh va cua tu.
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (so sanh)) y nang xa hoi. hieu va ((cac thuc) or (cac thu)) va thanh va cua tu*.