Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phep hoc noi snippets" » "phap hoc noi snippets", "phau hoc noi snippets", "phoi hoc noi snippets", "phep hoc nuoc 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: (((("phep hoc noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phep hoc noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phep hoc noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phep hoc noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.