Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"do kinh so snippets" » "doi kinh so snippets", "do dinh so snippets", "bo kinh so snippets", "do kinh co snippets", "do kinh do 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: (((("do kinh so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("do kinh so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( do kinh so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("do kinh so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.