Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
vai cuu » vai cua
tuc van » thuc van, truc van, tuc va
cuu tre » cua tre, cau tren, cau treo
y lang » o lang, tay lang, yen lang
ve cac » va cac, vien cac
ve cam » ve cham, va cam, ve cai
_ lang » o lang, _ land

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 lang) or (_ lang)) xa hoi. hieu ((ve cam) OR (ve cac)) tuc van hanh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y lang) OR (_ lang)) xa hoi. hieu ((ve cam) OR (ve cac)) tuc van hanh vai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((y lang) or (_ lang)) xa hoi. hieu ((ve cam) OR (ve cac)) tuc van hanh vai cuu tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((y lang) or (_ lang)) xa hoi. hieu ((ve cam) OR (ve cac)) tuc van hanh vai cuu tre*.