Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua duc hoi snippets" » "cua tuc hoi snippets", "cua nuoc hoi snippets", "cua quoc hoi snippets", "cua duoc hoi snippets", "cua duc hoa snippets", "cua duc loi 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: (((("cua duc 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: (((("cua duc hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua duc hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua duc hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.