Perhaps you should try some spelling variations:
"trong linh cao snippets" » "trong kinh cao snippets", "trong sinh cao snippets", "cuong linh cao snippets", "trong tinh cao snippets", "trong dinh cao snippets", "trong binh cao snippets"
"dung java java snippets" » "dung va java 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: (((("trong linh cao snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trong linh cao snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong linh cao snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong linh cao snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.