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