Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chuan pha du snippets" » "chuan ha du snippets", "chuan chat du snippets", "chuan chau du snippets", "chuan pham duc snippets", "chuan pham duy snippets", "chuan phan duc 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: (((("chuan pha du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chuan pha du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chuan pha du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chuan pha du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.