Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
danh di » danh du, xanh di, danh dien
danh vi » hanh vi, dinh vi, danh va
cam luc » cam xuc, cau luc
vu lanh » vu anh, vu manh, tu lanh
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
lang xa » lang ha, dang xay, lang van
luc va » duc va, tuc va, loc va
ve cam » ve cham, ve cac, va cam

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: vu lanh dao ((lang xa) or (nang ma)) hoi. hieu ve cam luc va ((danh vi) OR (danh di)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu lanh dao ((lang xa) OR (nang ma)) hoi. hieu ve cam luc va ((danh vi) OR (danh di)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu lanh dao ((lang xa) or (nang ma)) hoi. hieu ve cam luc va ((danh vi) OR (danh di)) cua triet".
• Adding a wildcard symbol may retrieve word variants: vu lanh dao ((lang xa) or (nang ma)) hoi. hieu ve cam luc va ((danh vi) OR (danh di)) cua triet*.