Perhaps you should try some spelling variations:
toc cach » hoc cach, toc sach, truoc cach
lang van » dang van, tang van, hoang van
qua tham » qua cham, qua than, qua thanh
tham duc » pham duc, tham du, than duc
cach tu » cach thuc
lang xa » lang ha, dang xay
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, cua triet
di cua » dai cua, doi cua, de cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: toc cach tu ((nang x) or (((lang xa) or (lang van)))) hoi. hieu qua tham duc va hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc cach tu ((nang x) OR (((lang xa) OR (lang van)))) hoi. hieu qua tham duc va hanh di cua tre.
• Adding a wildcard symbol may retrieve word variants: toc cach tu ((nang x) or (((lang xa) or (lang van)))) hoi. hieu qua tham duc va hanh di cua tre*.