Perhaps you should try some spelling variations:
"trong thoi gian snippets" » "trong thi gian snippets", "trong tho gian snippets", "trong trot gian snippets", "trong thoi giao snippets", "trong thoi gia snippets", "trong thoi gian 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 thoi gian 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 thoi gian snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong thoi gian snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong thoi gian snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.