Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi theo don snippets" » "thi thao don snippets", "thi tho don snippets", "thi thien don snippets", "thi theo dong snippets", "thi theo doi snippets", "thi theo duong 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: (((("thi theo 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: (((("thi theo don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi theo don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi theo don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.