Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
cua triet » cua viet, su triet, va triet
lang van » dang van, tang van, hoang van
ban hanh » ban hang
van hoi » van hoa, van hoc, van hoe
tuc ban » thuc ban, truc ban, tu ban
cua tre » cua te, cuu tre, dua tren
ve cam » ve cham, va cam, ve cai
y lang » o lang, _ lang, tay lang
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: thuoc sach y lang van hoi. hieu ((ve cam) or (ve cac)) tuc ban hanh vi ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach y lang van hoi. hieu ((ve cam) OR (ve cac)) tuc ban hanh vi ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: thuoc sach y lang van hoi. hieu ((ve cam) or (ve cac)) tuc ban hanh vi ((cua tre) or (cua triet))*.