Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hoc tinh doi snippets" » "hoc tinh code snippets", "hoc trinh doi snippets", "hoc sinh doi snippets", "hoc kinh doi snippets", "hoc trinh doc snippets", "hoc trinh do snippets", "hoc tinh hoc snippets"
"python using java snippets" » "python using data 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: (((("hoc tinh doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc tinh doi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hoc tinh doi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc tinh doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.