Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi anh hoc snippets" » "chi danh hoc snippets", "chi hanh hoc snippets", "thi anh hoc snippets", "chi sinh hoc snippets", "chi benh hoc snippets", "chi hinh 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: (((("chi anh 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: (((("chi anh hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi anh hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi anh hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.