Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kim anh cong snippets" » "kim hanh cong snippets", "kim anh dong snippets", "kim thanh cong snippets", "kim bang cong 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: (((("kim anh cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kim anh cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kim anh cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kim anh cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.