Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dinh luc cao snippets" » "dinh duc cao snippets", "dinh lua cao snippets", "dinh chuc cao snippets", "dinh luc cho snippets", "dinh luc canh snippets", "dinh quoc cao 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: (((("dinh luc cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dinh luc cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dinh luc cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dinh luc cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.