Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"biet cua che snippets" » "bieu cua che snippets", "bien cua che snippets", "biet giua che snippets", "biet cuu che snippets", "biet cua chu snippets", "biet cua cha 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: (((("biet cua che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("biet cua che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( biet cua che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("biet cua che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.