Perhaps you should try some spelling variations:
nhan luc » nang luc
vanh dai » van dai, lanh dao, va dai
vanh tai » van tai, hanh tai, anh tai
cuu tre » cua tre, cau tren, cau treo
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
hieu va » lieu va, hieu qua
va nhan » van nhan, ca nhan, va phan
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
luc va » duc va, tuc va, loc 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 dang xa hoi. hieu va nhan luc va ((((vanh dai) or (van dao))) or (vanh tai)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky dang xa hoi. hieu va nhan luc va ((((vanh dai) OR (van dao))) OR (vanh tai)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ky dang xa hoi. hieu va nhan luc va ((((vanh dai) or (van dao))) or (vanh tai)) cuu tre*.