Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc di cua snippets" » "doc vi cua snippets", "duoc dai cua snippets", "doc dai cua snippets", "doc doi cua snippets", "doc de 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: (((("doc di 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: (((("doc di cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc di cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc di cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.