Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hao quang cu snippets" » "ha quang cu snippets", "dao quang cu snippets", "lao quang cu snippets", "hao quang cua snippets", "hao quang huy snippets", "hao quang cao 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: (((("hao quang cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hao quang cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hao quang cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hao quang cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.