Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quoc cao cuc snippets" » "quoc bao cuc snippets", "quoc cac cuc snippets", "quoc cho cuc snippets", "quoc cao suc snippets", "quoc cao duc snippets", "quoc cho cuoc 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: (((("quoc cao cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quoc cao cuc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quoc cao cuc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quoc cao cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.