Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duoc doi ca snippets" » "cuoc doi ca snippets", "duoc hoi ca snippets", "luoc doi ca snippets", "duoc doi cua snippets", "duoc doi cay snippets", "duoc duoi ca 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: (((("duoc doi 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: (((("duoc doi ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duoc doi ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc doi ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.