Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"long kinh do snippets" » "dong kinh do snippets", "long tinh do snippets", "long binh do snippets", "long kinh co snippets", "long trinh do snippets", "long kinh hoc 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: (((("long kinh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("long kinh do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( long kinh do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("long kinh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.