Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"don hang cau snippets" » "dong bang cau snippets", "doi khang cau snippets", "don quang cau snippets", "don hang dau snippets", "don hang ca snippets", "don nhung cau 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: (((("don hang cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("don hang cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( don hang cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("don hang cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.