Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"don trinh co snippets" » "dong trinh co snippets", "don tinh co snippets", "dan trinh co snippets", "don trinh do snippets", "don trinh cong snippets", "don trinh hoa 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: (((("don trinh 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: (((("don trinh co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( don trinh co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("don trinh co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.