Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"da voi cach snippets" » "da loi cach snippets", "da voi cac snippets", "da doi cach snippets", "dao voi cach snippets", "dua voi cach snippets", "ba voi cach snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"da voi cach snippets\") OR (\"python using java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( da voi cach snippets ) OR ( python using java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("da voi cach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))*.