Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi gioi cac snippets" » "thi giong cac snippets", "thi moi cac snippets", "loi gioi cac snippets", "thi giai cac snippets", "thi gioi cam snippets", "thi 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: (((("thi gioi cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi gioi cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi gioi cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi gioi cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.