Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lap tieu doi snippets" » "lac tieu doi snippets", "luan tieu doi snippets", "lap tu doi snippets", "lap lieu doi snippets", "lap tiep doi snippets", "lap trieu dai 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: (((("lap tieu 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: (((("lap tieu doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lap tieu doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lap tieu doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.