Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
sinh trong » sinh truong, sinh trung, dinh trong
dieu tuong » dieu duong, bieu tuong, dien tuong
diem tuong » dien thuong, dieu duong, dien xuong
toan khoan » toan khoa, toan phan, toan hoat
cong toan » cong tan, cong hoan, cong tuan
khoan cap » khoan cam, khan cap, khoa cap
ho chieu » theo chieu, hoc thieu, doi chieu

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 - sinh trong ((dieu tuong) or (diem tuong)) cong toan khoan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - sinh trong ((dieu tuong) OR (diem tuong)) cong toan khoan cap.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - sinh trong ((dieu tuong) or (diem tuong)) cong toan khoan cap*.