Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi doanh ve snippets" » "voi doanh ve snippets", "dong doanh ve snippets", "tri doanh ve snippets", "doi doanh va snippets", "doi doanh vien snippets", "doi doanh van 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 doanh 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: (((("doi doanh ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi doanh ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi doanh ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.