Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"gian nam lo snippets" » "gian cam lo snippets", "gian nan lo snippets", "gian tam lo snippets", "gian nam bo snippets", "gian nam so snippets", "gian nam co 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 nam lo 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 nam lo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gian nam lo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gian nam lo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.