Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc nhat co snippets" » "hoc phat co snippets", "hoc chat co snippets", "hoc hat co snippets", "hoc nhat cho snippets", "hoc nhat so 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 nhat co 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 nhat co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc nhat co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc nhat co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.