Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
cam luc » cam xuc, cau luc
va lanh » va lang, va danh, va hanh
dao cua » dai cua, day cua, dan cua
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
va cam » va cham, va cac, va cao
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 ((lang xa) or (van xay)) hoi. hieu va cam luc va lanh dao cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((lang xa) OR (van xay)) hoi. hieu va cam luc va lanh dao cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((lang xa) or (van xay)) hoi. hieu va cam luc va lanh dao cua triet*.