Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc luu ke snippets" » "hoc huu ke snippets", "hoc lua ke snippets", "hoc luan ke snippets", "hoc muu ke snippets", "hoc luu ky snippets", "hoc luu kehr 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 luu ke 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 luu ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc luu ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc luu ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.