Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tien thi can snippets" » "trien thi can snippets", "tiep thi can snippets", "tien khi can snippets", "tien thi canh snippets", "tien thi lan snippets", "tien thi dan 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: (((("tien thi can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tien thi can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tien thi can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tien thi can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.