Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
hieu van » hieu va, thien van, lieu va
van lam » van nam
ky lang » ky nang, ky dang, ky tang
luc va » duc va, tuc va, loc va
xuc va » duc va, tuc va, xac va
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
ha hoi » hoa hoi, xa hoi, va hoi
cua te » cua tu

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 lang ((ha hoi) OR (ha noi)). hieu van lam ((xuc va) or (luc va)) thanh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky lang ((ha hoi) OR (ha noi)). hieu van lam ((xuc va) OR (luc va)) thanh dai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky lang ((ha hoi) OR (ha noi)). hieu van lam ((xuc va) or (luc va)) thanh dai cua te*".