Perhaps you should try some spelling variations:
khanh than » khanh thanh, khanh thuan, khan than
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
xa khanh » xa thanh, van khanh, dat khanh
bo sach » co sach, hoc sach
hieu ve » hieu va, hieu van
ly nang » ky nang, ly hang, ly vang
y nang » ky nang, v nang, may nang
xuc xa » tuc xa, buc xa
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: bo sach ((y nang) or (ly nang)) ma hoa. hieu ve cam xuc xa khanh than ((cua triet) OR (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo sach ((y nang) OR (ly nang)) ma hoa. hieu ve cam xuc xa khanh than ((cua triet) OR (va triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "bo sach ((y nang) or (ly nang)) ma hoa. hieu ve cam xuc xa khanh than ((cua triet) OR (va triet))".
• Adding a wildcard symbol may retrieve word variants: bo sach ((y nang) or (ly nang)) ma hoa. hieu ve cam xuc xa khanh than ((cua triet) OR (va triet))*.