Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
toc sach » hoc sach, doc sach, thuoc sach
van hanh » van thanh, ban hanh, van anh
hieu ve » hieu va, hieu van
vai cua » dai cua, hai cua, lai cua
nang xa » nang x, lang xa, nang ma
lang ha » long ha
cac vo » cac co, cac vi, cac bo
ve cac » va cac, vien cac
cua te » cua tu

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) or (toc sach)) ky ((nang xa) or (lang ha)) hoi. hieu ve cac vo van hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) ky ((nang xa) OR (lang ha)) hoi. hieu ve cac vo van hanh vai cua te.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (toc sach)) ky ((nang xa) or (lang ha)) hoi. hieu ve cac vo van hanh vai cua te*.