Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat ngoc hoi snippets" » "dat nuoc hoi snippets", "dau ngoc hoi snippets", "dang ngoc hoi snippets", "dat ngoc hai snippets", "dat ngoc hoa snippets", "dat ngoai hoi 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: (((("dat ngoc 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: (((("dat ngoc hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat ngoc hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat ngoc hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.