Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chu tao canh snippets" » "chu tao anh snippets", "chu tao can snippets", "chu tao danh snippets", "che tao canh snippets", "cau tao canh snippets", "chu tai 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: (((("chu tao 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: (((("chu tao canh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chu tao canh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu tao canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.