Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
nang cay » nang cao, nang cap, nang cai
cay phoi » cap phoi, tay hoi, cay cho
hieu va » lieu va, hieu qua
va chat » van chat, va phat, cao chat
van luu » von luu, van lu, van luc
luu tre » luu tru, cuu tre, luy tre
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
luc va » duc va, tuc va
loc va » hoc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang cay phoi. hieu va chat ((luc va) or (loc va)) thanh van luu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang cay phoi. hieu va chat ((luc va) OR (loc va)) thanh van luu tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang cay phoi. hieu va chat ((luc va) or (loc va)) thanh van luu tre*.