Perhaps you should try some spelling variations:
nhan viet » nhan vien, han viet, nhin viet
viet cua » viec cua, viet ca, viet qua
thu sac » thu sach, thu san, thu xac
hieu va » lieu va, hieu qua
nang xa » lang xa, nang ma, mang xa
va nhan » van nhan, ca nhan, va phan
hieu ve » hieu van
cao suc » cao su, cao duc
suc va » duc va, tuc va, luc va
sac ky » cac ky, sai ky
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: thu sac ky ((nang xa) OR (nang x)) hoi. ((hieu ve) OR (hieu va)) cao suc va nhan viet cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sac ky ((nang xa) or (nang x)) hoi. ((hieu ve) OR (hieu va)) cao suc va nhan viet cua te~".
• Adding a wildcard symbol may retrieve word variants: thu sac ky ((nang xa) or (nang x)) hoi. ((hieu ve) OR (hieu va)) cao suc va nhan viet cua te*.