Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"don tham chi snippets" » "dong tham chi snippets", "don tam chi snippets", "hong tham chi snippets", "don pham chi snippets", "don thai chi snippets", "don nam chi 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 tham chi 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 tham chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( don tham chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("don tham chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.