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