Perhaps you should try some spelling variations:
"trong thi tac snippets" » "trong thoi tac snippets", "trong thu tac snippets", "trong tho tac snippets", "trong thi tam snippets", "trong thi thao snippets", "trong thi tran snippets", "trong thi tac slippers"
"dung java java snippets" » "dung va java snippets", "dung java 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 thi tac 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 thi tac snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong thi tac snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong thi tac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.