Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua trong co snippets" » "quan trong co snippets", "qua trinh co snippets", "qua song co snippets", "qua trong ca snippets", "qua trong cong snippets", "qua trong cuoc 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: (((("qua trong co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("qua trong co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua trong co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua trong co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.