Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dai hang doi snippets" » "dai thang doi snippets", "dai han doi snippets", "dat hang doi snippets", "dai hang di snippets", "dai hang loi snippets", "dai huong doi 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: (((("dai hang doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dai hang doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dai hang doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dai hang doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.