Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van hau cong snippets" » "van hau code snippets", "van khau cong snippets", "van cau cong snippets", "van hau bong snippets", "van ha cong snippets", "van hai cong snippets", "van dau cong snippets"
"python using java snippets" » "python using data snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("van hau 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: (((("van hau cong snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van hau cong snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van hau cong snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.