Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"gian van tro snippets" » "giang van tro snippets", "gian dan tro snippets", "gian lan tro snippets", "gian ban tro snippets", "gian van tri snippets", "gian van tru snippets", "gian van tro 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: (((("gian van tro snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("gian van tro snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gian van tro snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gian van tro snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.