Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"nhung tu hon snippets" » "nhung tu code snippets", "nhung thu hon snippets", "chung tu hon snippets", "hung tu hon snippets", "nhung tu chon snippets", "nhung tuc hon snippets", "nhung tu 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: (((("nhung tu hon snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhung tu hon snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( nhung tu hon snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung tu hon snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.