Perhaps you should try some spelling variations:
cua triet » su triet, va triet
manh hanh » xanh hanh, danh thanh, minh thanh
hanh vai » hanh vi, hanh va, hanh tai
cua viet » ca viet, hoa viet, cua vat
so sach » so sanh, bo sach, co sach
ty nang » ty xang, ty hang, ly nang
hieu ve » hieu va, hieu van
cam suc » cam xuc, cao suc, cham soc
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: so sach ((ty nang) or (ky nang)) xa hoi. hieu ve cam suc manh hanh vai ((cua triet) OR (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((ty nang) OR (ky nang)) xa hoi. hieu ve cam suc manh hanh vai ((cua triet) OR (cua viet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ((ty nang) or (ky nang)) xa hoi. hieu ve cam suc manh hanh vai ((cua triet) OR (cua viet))".
• Adding a wildcard symbol may retrieve word variants: so sach ((ty nang) or (ky nang)) xa hoi. hieu ve cam suc manh hanh vai ((cua triet) OR (cua viet))*.