Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vot bac cau snippets" » "mot bac cau snippets", "vo bac cau snippets", "viet bac cau snippets", "vot bach cau snippets", "vot ba cau snippets", "vot bac can 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: (((("python using java snippets") or ("vot bac cau snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("vot bac cau snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( vot bac cau snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("vot bac cau snippets"))) or ("locating bug code snippets"))*.