Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap cho so snippets" » "phap che so snippets", "phap chu so snippets", "phap chong so snippets", "phap cho son snippets", "phap co so snippets", "phap ho so 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: (((("phap cho 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: (((("phap cho so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap cho so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap cho so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.