Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi hanh cho snippets" » "doc hanh cho snippets", "doi khang cho snippets", "thi hanh cho snippets", "doi danh cho snippets", "doi han cho snippets", "doi hang 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: (((("doi 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: (((("doi hanh cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi hanh cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi hanh cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.