Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi loan hoi snippets" » "thi lan hoi snippets", "thi hoan hoi snippets", "thi lien hoi snippets", "thi khoan hoi snippets", "thi toan hoc snippets", "thi toan 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: (((("thi loan hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi loan hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi loan hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi loan hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.