Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"det cau chap snippets" » "det cau cham snippets", "det cau chan snippets", "det cau phap snippets", "ket cau chap snippets", "dat cau chap snippets", "diem cau chap 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: (((("det cau chap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("det cau chap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( det cau chap snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("det cau chap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.