Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi sinh cua snippets" » "hoi sinh cua snippets", "noi sinh cua snippets", "doi dinh cua snippets", "doi manh cua snippets", "doi dinh cuu snippets", "doi sinh va 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: (((("doi sinh 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: (((("doi sinh cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi sinh cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi sinh cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.