Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
sach ky » sac ky, sach y, sach ty
hai cua » thai cua, dai cua, hoi cua
lai cua » dai cua, lai chau, thai cua
nam loc » nam moc, nam soc, nam duoc
hieu ve » hieu va, hieu van
sang xa » song xa, lang xa, sang ma
ky sang » ky nang, ky dang, ky tang
nam lo » nam bo, nam so, nam co

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 sang xa hoi. hieu ve ((nam loc) or (nam lo)) van hanh ((lai cua) or (hai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky sang xa hoi. hieu ve ((nam loc) OR (nam lo)) van hanh ((lai cua) OR (hai cua)) tre.
• Adding a wildcard symbol may retrieve word variants: te sach ky sang xa hoi. hieu ve ((nam loc) or (nam lo)) van hanh ((lai cua) or (hai cua)) tre*.