Perhaps you should try some spelling variations:
"trong cuoi cac snippets" » "trong cuoc cac snippets", "trong choi cac snippets", "trong coi cac snippets", "trong cuoi dac snippets", "trong cuoc cach snippets", "trong cuong cac 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 cuoi cac 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 cuoi cac snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong cuoi cac snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong cuoi cac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.