Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hieu ly hoc snippets" » "hieu ky hoc snippets", "lieu ly hoc snippets", "hien ly hoc snippets", "hieu y hoc snippets", "hieu li 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: (((("hieu ly 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: (((("hieu ly hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hieu ly hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hieu ly hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.