Perhaps you should try some spelling variations:
"cuoc trinh o snippets" » "cuoc tranh o snippets", "quoc thinh o snippets", "cuoc chinh o snippets", "cuoc trinh do snippets", "cuoc trinh co snippets", "cuoc trinh mo snippets"
"python using java snippets" » "python using data 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: (((("cuoc trinh o snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuoc trinh o snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuoc trinh o snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuoc trinh o snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.