Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"van cac thanh lieu" » "van cac thanh liem", "van cac thanh thieu", "van cac thanh vien", "van bac thanh lieu", "van cach nhanh lieu", "van ban thanh lieu", "van hac thanh lieu", "van cau thanh lieu"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using java snippets") or ("van cac thanh lieu"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("van cac thanh lieu"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( van cac thanh lieu ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("van cac thanh lieu"))) or ("locating bug core snippets"))*.