Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"gian lan der snippets" » "gian lang der snippets", "gian dan der snippets", "giang van der snippets", "gian van der snippets", "gian lan dieu snippets", "gian luan den 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: (((("gian lan der snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("gian lan der snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gian lan der snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gian lan der snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.