Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"buoc tao cau snippets" » "buoc tai cau snippets", "buoc vao cau snippets", "cuoc tao cau snippets", "buoc tao cu snippets", "buoc tao cao snippets", "buoc tao sau 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: (((("buoc tao cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("buoc tao cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( buoc tao cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("buoc tao cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.