Perhaps you should try some spelling variations:
hanh lai » hanh lam, hanh tai, thanh lap
sang tao » hang tai
cua tre » cua te, cua triet, dua tren
va hanh » van hanh, va thanh, va danh
cac duc » cac du, cao duc, cac dac
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach kem
tao hoi » tao khoi, tao boi, tay hoi
sach ty » sach y, sach tu, sach thu
cuu tre » cau tren, cau treo
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: tu ((sach ky) OR (sach ty)) sang tao hoi. hieu ve cac duc va hanh lai ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach ty)) sang tao hoi. hieu ve cac duc va hanh lai ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sach ty)) sang tao hoi. hieu ve cac duc va hanh lai ((cua tre) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) OR (sach ty)) sang tao hoi. hieu ve cac duc va hanh lai ((cua tre) or (cuu tre))*.