Perhaps you should try some spelling variations:
"n trinh chap snippets" » "n trinh code snippets", "n trinh chat snippets", "n tranh chap snippets", "n trinh chao snippets", "p trinh chap snippets", "anh trinh chap snippets", "dan trinh chap snippets"
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data 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: (((("python using java snippets") or ("n trinh chap snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("n trinh chap snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( n trinh chap snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("n trinh chap snippets"))) or ("locating bug core snippets"))*.