Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
lang xa » lang ha, dang xay, lang van
ve cam » ve cham, ve cai, ve cau
y lang » o lang, _ lang, tay lang
va cam » va cham, va cac, va cao
tuc va » thuc va, truc va, tuc xa
vi cua » vai cua, di cua
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 y lang xa hoi. hieu ((((ve cam) or (ve cac))) or (va cam)) tuc va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y lang xa hoi. hieu ((((ve cam) OR (ve cac))) OR (va cam)) tuc va hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach y lang xa hoi. hieu ((((ve cam) or (ve cac))) or (va cam)) tuc va hanh vi cua tre*.