Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"che ho du snippets" » "che do du snippets", "he ho du snippets", "che khoa du snippets", "che ho duc snippets", "che cho du snippets", "che ho dua 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 ("che ho du snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("che ho du snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( che ho du snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("che ho du snippets"))) or ("locating bug code snippets"))*.