Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ket hang cau snippets" » "vet thang cau snippets", "viet hang cau snippets", "dat hang cau snippets", "ket hang dau snippets", "ket hang ca snippets", "ket nhung cau 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: (((("ket hang cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ket hang cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ket hang cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ket hang cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.