Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"huyet hoc 1 snippets" » "huyet hoc 10 snippets", "huyet hoc 11 snippets", "huyet hoc y snippets", "thuyet hoc 1 snippets", "quyet hoc 1 snippets", "huyen hoc 1 snippets", "huyet hoc 1 slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("huyet hoc 1 snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("huyet hoc 1 snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huyet hoc 1 snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huyet hoc 1 snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.