Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
vien cua » viec cua, dien cua, tien cua
va sinh » va tinh, vi sinh, hoa sinh
va kinh » va tinh, qua kinh
nam luc » nang luc, nhan luc, nam thuc
cao hoc » co hoc, cho hoc, chat hoc
hieu va » hieu qua
sac ky » cac ky, sai ky
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 cao hoc. ((hieu va) or (lieu va)) nam luc ((va sinh) OR (va kinh)) vien cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang cao hoc. ((hieu va) OR (lieu va)) nam luc ((va sinh) OR (va kinh)) vien cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang cao hoc. ((hieu va) or (lieu va)) nam luc ((va sinh) OR (va kinh)) vien cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang cao hoc. ((hieu va) or (lieu va)) nam luc ((va sinh) OR (va kinh)) vien cua triet*.