Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua tham du snippets" » "cua tam du snippets", "cua ham du snippets", "chuan tham du snippets", "cua thap du snippets", "cua tham do snippets", "cua pham 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: (((("cua tham 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: (((("cua tham du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua tham du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua tham du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.