Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"san cong ho snippets" » "sang cong ho snippets", "van cong ho snippets", "ban cong ho snippets", "san cong hoa snippets", "san cong cho snippets", "san cong hon 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: (((("san cong ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("san cong ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( san cong ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("san cong ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.