Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao doanh he snippets" » "cho doanh he snippets", "cac doanh he snippets", "cao danh he snippets", "cao doanh ha snippets", "cao doanh hieu snippets", "cao doanh thu 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: (((("cao doanh he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao doanh he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao doanh he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao doanh he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.