Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vat gioi cau snippets" » "van gioi cau snippets", "dao gioi cau snippets", "vat nuoi cau snippets", "vat gioi chau snippets", "vat gioi cam snippets", "vat gioi can 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: (((("vat gioi 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: (((("vat gioi cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vat gioi cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vat gioi cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.