Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vao thu canh snippets" » "vao thuc hanh snippets", "vao thu cong snippets", "vao thu ban snippets", "vao thuc canh snippets", "van thu canh snippets", "va thu canh 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 thu canh 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 thu canh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vao thu canh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vao thu canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.