Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dang nam son snippets" » "dong nam son snippets", "dan nam son snippets", "dung nam son snippets", "dang nam so snippets", "dang lam son snippets", "dang sam son 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: (((("dang nam son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang nam son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang nam son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang nam son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.