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