Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
va tinh » may tinh
tinh va » tich va, trinh van, trinh vat
cam luc » cam xuc, cau luc
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
va cam » va cham, va cac, va cao
sac 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) or (cac ky)) nang xa hoi. hieu va cam luc va tinh va ((cua triet) OR (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sac ky) OR (cac ky)) nang xa hoi. hieu va cam luc va tinh va ((cua triet) OR (va triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sac ky) or (cac ky)) nang xa hoi. hieu va cam luc va tinh va ((cua triet) OR (va triet))".
• Adding a wildcard symbol may retrieve word variants: tu ((sac ky) or (cac ky)) nang xa hoi. hieu va cam luc va tinh va ((cua triet) OR (va triet))*.