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