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