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