Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hao van cap snippets" » "dao van cap snippets", "ho van cap snippets", "cao van cap snippets", "hao van cau snippets", "hao van dap snippets", "hao van ca 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: (((("hao van cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hao van cap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hao van cap snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hao van cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.