Perhaps you should try some spelling variations:
lang van » dang van, tang van, hoang van
te sach » toc sach
sach ky » sac ky, sach y, sach ty
lang xa » lang ha, dang xay
qua cam » qua cham, qua cac, qua ca
va hanh » van hanh, va thanh, va danh
hanh de » hanh ve, hanh kem
xuc va » duc va, tuc va, luc va
de va » de van, te va, ke 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 ky ((lang xa) or (lang van)) hoi. hieu qua cam xuc va hanh de va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((lang xa) OR (lang van)) hoi. hieu qua cam xuc va hanh de va thiet.
• Adding a wildcard symbol may retrieve word variants: te sach ky ((lang xa) or (lang van)) hoi. hieu qua cam xuc va hanh de va thiet*.