Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
hanh vai » hanh vi, hanh va, hanh van
sua chu » sua chua, cua chu, bua chu
cao suc » cao su
hieu ve » hieu va, hieu van
cao duc » dao duc, giao duc, tao duoc
sai ky » sac ky
tu sai » tu bai, tu san, tu cai
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: tu sai ky nang x hoi. hieu ve ((cao duc) OR (cao suc)) va ((hanh vai) or (hanh tai)) sua chu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang x hoi. hieu ve ((cao duc) OR (cao suc)) va ((hanh vai) OR (hanh tai)) sua chu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky nang x hoi. hieu ve ((cao duc) OR (cao suc)) va ((hanh vai) or (hanh tai)) sua chu".
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang x hoi. hieu ve ((cao duc) OR (cao suc)) va ((hanh vai) or (hanh tai)) sua chu*.