Perhaps you should try some spelling variations:
va thanh » ban thanh, va tinh, le thanh
cau theo » cau thi, cau tao
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
qua va » quan va, qua van, vua va
va cau » van cau, va cac, va dau
x hoi » xa hoi, o hoi, x ho
va tu » va su

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky nang x hoi. hieu qua va tu ((va thanh) OR (gia thanh)) va cau theo~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang x hoi. hieu qua va tu ((va thanh) OR (gia thanh)) va cau theo".
• Adding a wildcard symbol may retrieve word variants: su sac ky nang x hoi. hieu qua va tu ((va thanh) OR (gia thanh)) va cau theo*.