Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
pham thuc » phap thuc, pham chuc, nham thuc
xa thanh » va thanh, ha thanh, ta thanh
thanh de » hanh de, thanh ve, thanh do
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
va pham » van pham, va phat, va phap
thuc xa » thuc xay, tuc xa, thuc va
cua tre » cua te, cuu tre, dua tren

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky nang xa hoi. lieu va pham thuc xa thanh de ((cua tre) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xa hoi. lieu va pham thuc xa thanh de ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. lieu va pham thuc xa thanh de ((cua tre) OR (cua triet))*.