Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac tuong ke snippets" » "cac truong ke snippets", "cac phuong ke snippets", "cac chuong ke snippets", "cac thong ke snippets", "cac tuong ky snippets", "cac luong ke 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: (((("cac tuong ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac tuong ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac tuong ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac tuong ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.