Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
nhung cong » dung cong, thong cong, hang cong
trinh van » trinh quan, trinh toan, dinh van
trinh han » trinh quan
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu xanh - canh ((trinh van) or (trinh han)) nhung cong tan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu xanh - canh ((trinh van) OR (trinh han)) nhung cong tan phan cau*.