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