Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi kinh hoa snippets" » "do kinh hoa snippets", "doi dinh hoa snippets", "doi tinh hoa snippets", "doi kinh khoa snippets", "doi minh hoa snippets", "doi kinh hoc 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 kinh hoa 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 kinh hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi kinh hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi kinh hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.