Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tu tieng hoc snippets" » "tu tieng han snippets", "tu trung hoc snippets", "tu tien hoa snippets", "luc tieng hoc snippets", "tu tuong hoc snippets", "tu trong 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: (((("tu tieng hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tu tieng hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tu tieng hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tu tieng hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.