Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"do gen choi snippets" » "do len choi snippets", "do gen khoa snippets", "do ben chi snippets", "doi gen choi snippets", "do ben choi 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 gen choi 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 gen choi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( do gen choi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("do gen choi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.