Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cau xin tong snippets" » "cau xen tong snippets", "cau sinh tong snippets", "cau tin trong snippets", "cau kien tong snippets", "cau vinh tong snippets", "cau hien tong 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: (((("cau xin tong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cau xin tong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cau xin tong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cau xin tong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.