Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thao duoc do snippets" » "tao duoc do snippets", "thao duong do snippets", "thuat duoc do snippets", "thao duoc dao snippets", "thao duoc co snippets", "thao duoc vo 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: (((("thao duoc do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thao duoc do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thao duoc do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thao duoc do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.