Perhaps you should try some spelling variations:
hanh doi » thanh doi, hanh noi, hang doi
va trien » va truyen, va thiet, va tuyen
te sach » toc sach
tang ma » mang may, tang van
hieu va » lieu va, hieu qua
cam tuc » cam xuc, cam tu, nam thuc
xa hanh » xa thanh, xa khanh, va hanh
ang xa » lang xa, mang xa, dang xay
va cam » va cham, va cac, va cao
doi va » hoi va, noi va, dai va

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 ((((ang xa) or (tang ma))) or (nang x)) hoi. hieu va cam tuc xa hanh doi va trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((((ang xa) OR (tang ma))) OR (nang x)) hoi. hieu va cam tuc xa hanh doi va trien.
• Adding a wildcard symbol may retrieve word variants: te sach y ((((ang xa) or (tang ma))) or (nang x)) hoi. hieu va cam tuc xa hanh doi va trien*.