Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hon voi cong snippets" » "hon voi code snippets", "hon noi cong snippets", "hon moi cong snippets", "hon tai cong snippets", "hop voi cong snippets", "ho voi cong snippets", "hoc voi cong 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: (((("hon voi cong snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hon voi cong snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hon voi cong snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hon voi cong snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.