Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu vi don snippets" » "thu ai don snippets", "thu va don snippets", "chu vi don snippets", "thu vi dong snippets", "thu vi con 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: (((("thu vi don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu vi don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu vi don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu vi don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.