Perhaps you should try some spelling variations:
nhan tien » nhan vien, nhan dien, phan tien
cua viet » ca viet, hoa viet, cua vat
tien cua » trien cua, tiep cua, dien cua
va nhan » van nhan, ca nhan, va phan
cau luc » cau truc, cau phuc
hieu va » lieu va, hieu qua
hoa hoi » khoa hoi, hoa hoc, hoa doi
hoc hoi » hoc khoi, hoc noi, hoc moi
hoc hoa » hoc khoa
sac ky » cac ky, sai ky
va cau » van cau, va cac, va dau
luc va » duc va, tuc va, loc va
tu sac » tu sach, tu cac, tu san

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