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