Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van gio hoac snippets" » "van gio hoc snippets", "van gio hai snippets", "van gio hon snippets", "van giao hoac snippets", "van gioi hoac snippets", "van gia hoac snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("van gio hoac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van gio hoac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van gio hoac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van gio hoac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.