Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dang van lon snippets" » "dang van code snippets", "hoang van lon snippets", "hang va lon snippets", "dang van long snippets", "dang van loi snippets", "dang van loc snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets"

Try widening your search to All Fields.

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