Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
bang xa » lang xa, bang va, ang xa
mang xa » lang xa, mang may, dang xay
hieu ve » hieu va, hieu van
xuc van » duc van, luc van, vuc van
hanh de » hanh ve, hanh kem
ve cam » ve cham, ve cac, va cam
de cua » le cua, te cua, dieu cua
cua su » qua su

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 thieu ((bang xa) or (mang xa)) hoi. hieu ve cam xuc van hanh de cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach thieu ((bang xa) OR (mang xa)) hoi. hieu ve cam xuc van hanh de cua su.
• Adding a wildcard symbol may retrieve word variants: te sach thieu ((bang xa) or (mang xa)) hoi. hieu ve cam xuc van hanh de cua su*.