Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh tai » thanh tai, hang tai, han tai
hanh vai » hanh vi, hanh va, hanh van
thuc day » thuc dan, thuc vat
nam thuc » nam thuoc, am thuc, nam thu
sach ky » sach y, sach ty, sach kem
hieu va » lieu va, hieu qua
long ha » dong ha, cong ha, dong hoa
ha hoi » hoa hoi, ha noi, xa hoi
sac ky » cac ky, sai ky
va nam » van nam, ha nam, va nay

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 (sac ky)) long ha hoi. hieu va nam thuc day ((hanh vai) or (hanh tai)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sac ky)) long ha hoi. hieu va nam thuc day ((hanh vai) OR (hanh tai)) cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sac ky)) long ha hoi. hieu va nam thuc day ((hanh vai) or (hanh tai)) cua triet*".