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