Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"que quang le snippets" » "hue quang le snippets", "qua quang le snippets", "quan quang le snippets", "que quang yen snippets", "que quan ly snippets", "que quan li 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: (((("que quang le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("que quang le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( que quang le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("que quang le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.