Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nham mat doi snippets" » "ham mat doi snippets", "cham mat doi snippets", "nha may doi snippets", "nham hat doi snippets", "nham mai doi snippets", "nham mot doi 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: (((("nham mat doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nham mat doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nham mat doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nham mat doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.