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