Perhaps you should try some spelling variations:
lang van » dang van, tang van, hoang van
te sach » toc sach
van hoc » van hoa
hieu va » lieu va, hieu qua
nam xuc » cam xuc, nam xua, nam thuc
va hanh » van hanh, va thanh, va danh
hanh ca » hanh cac, hanh cat, hanh cua
cua tre » cua te, cuu tre, cua triet
y lang » o lang, _ lang, tay lang
va nam » van nam, ha nam, va nay
xuc va » duc va, tuc va, luc va
thiet » thieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y lang van hoc. hieu va nam xuc va hanh ca ((cua tre) or (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y lang van hoc. hieu va nam xuc va hanh ca ((cua tre) OR (va thiet)).
• Adding a wildcard symbol may retrieve word variants: te sach y lang van hoc. hieu va nam xuc va hanh ca ((cua tre) or (va thiet))*.