Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
pham duy » pham duc
cham duc » pham duc, cham soc, phan duc
cach tu » cach thuc
hieu va » lieu va, hieu qua
sach tu » sach thu, sach ty, sach uu
va hanh » van hanh, va thanh, va danh
hanh de » hanh ve, hanh kem
de cua » le cua, te cua, dieu cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach tu) OR (cach tu)) nang x ho. hieu va ((cham duc) OR (pham duy)) va hanh de cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach tu) OR (cach tu)) nang x ho. hieu va ((cham duc) or (pham duy)) va hanh de cua triet~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach tu) OR (cach tu)) nang x ho. hieu va ((cham duc) or (pham duy)) va hanh de cua triet*.