Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhat va he snippets" » "nhan va he snippets", "chat va he snippets", "nhat ve he snippets", "nhat va che snippets", "nhat va ghe snippets", "nhat va de 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: (((("nhat va he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhat va he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhat va he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhat va he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.