Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cau treo » cau theo, cau tren, cau triet
hanh vai » hanh vi, hanh va, hanh tai
sach ty » sach y, sach tu, sach thu
cuu tre » cua tre, cau tren
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
va hanh » van hanh, va thanh, va danh
cac ly » cac ky, cac le, cam ly
ve cac » va cac, vien cac

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 ty nang xa hoi. hieu ve cac ly va hanh vai ((((cuu tre) OR (cau treo))) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang xa hoi. hieu ve cac ly va hanh vai ((((cuu tre) OR (cau treo))) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang xa hoi. hieu ve cac ly va hanh vai ((((cuu tre) OR (cau treo))) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: su sach ty nang xa hoi. hieu ve cac ly va hanh vai ((((cuu tre) OR (cau treo))) or (cua triet))*.