Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giua cac xe snippets" » "giua cau xe snippets", "cua cac xe snippets", "gian cac xe snippets", "giua cac he snippets", "giua cac ke snippets", "giua cac le 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: (((("giua cac xe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("giua cac xe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giua cac xe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giua cac xe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.