Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu tai long snippets" » "thu thai long snippets", "thu tai cong snippets", "thu hai long snippets", "tu tai long snippets", "tru tai long 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 tai long 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 tai long snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu tai long snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu tai long snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.