Perhaps you should try some spelling variations:
thiet nhung » tuyet nhung, thi nhung, biet nhung
chieu sang » chieu sach, chieu xanh, hieu lang
toan thiet » hoan thien, luan thiet, toan tien
nhung cong » dung cong, thong cong, hang cong
ho chieu » theo chieu, hoc thieu, mot chieu
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sang - tinh toan thiet nhung cong tac toan tap~.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - tinh toan thiet nhung cong tac toan tap*.