Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hao mon son snippets" » "hat mon son snippets", "hau mon son snippets", "ho mon son snippets", "hao min son snippets", "hao dong son snippets", "hao minh son 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 mon son 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 mon son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hao mon son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hao mon son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.