Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao khai mo snippets" » "cao chat mo snippets", "co khi mo snippets", "cao tai mo snippets", "cao khac mo snippets", "cao khi mo snippets", "cao khai bao 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: (((("cao khai mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao khai mo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao khai mo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao khai mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.