Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
hieu van » hieu va, thien van, lieu va
van lam » van nam
lam duc » lam duoc, pham duc, nam duoc
hanh va » hang va, hanh vi
sua chu » sua chua, cua chu, bua chu
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
x hoi » o hoi, x ho, 5 hoi

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) or (xa hoi)). hieu van lam duc va ((hanh va) or (thanh tai)) sua chu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang ((x hoi) OR (xa hoi)). hieu van lam duc va ((hanh va) OR (thanh tai)) sua chu.
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang ((x hoi) or (xa hoi)). hieu van lam duc va ((hanh va) or (thanh tai)) sua chu*.