Perhaps you should try some spelling variations:
"trong nuoc cac snippets" » "trong cuoc cac snippets", "song nuoc cac snippets", "trong tuc cac snippets", "trong duoc cac snippets", "trong luoc cac snippets", "trong nuoc cap 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 nuoc 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 nuoc cac snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong nuoc cac snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong nuoc cac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.