Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"data nuoc ca snippets" » "dat nuoc ca snippets", "dat duoc ca snippets", "dau nuoc ca snippets", "data nuoc cua snippets", "data nuoc cap snippets", "data nuoc va 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: (((("data nuoc ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("data nuoc ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( data nuoc ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("data nuoc ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.