Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trong co de snippets" » "trong ca de snippets", "trong cong de snippets", "trong cuoc de snippets", "trong cao de snippets", "trong bo de snippets", "trong co do 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: (((("trong co de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trong co de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong co de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong co de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.