Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc luoc ve snippets" » "doc cuoc ve snippets", "duoc duoc ve snippets", "duoc cuoc ve snippets", "doc nuoc ve snippets", "doc luoc va snippets", "doc luoc vu 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 luoc ve 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 luoc ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc luoc ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc luoc ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.