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