Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi tuong do snippets" » "moi truong do snippets", "doi song do snippets", "doi tuong dao snippets", "doi tuong doi snippets", "doi tuong ho 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: (((("doi tuong 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: (((("doi tuong do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi tuong do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi tuong do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.