Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
trinh chua » trinh chuan, trinh cua, tinh chua
doi chieu » doc hieu, doi chi, ho chieu
trinh chu » trinh cau, trinh cho, trinh thuc
dang cong » dung cong
cong dan » cong san, cong tan, huong dan
dan thai » dang thai, dan thi, dan than
thai cao » tai cao, thoai cac, thuat cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu tinh - hanh ((trinh chua) or (trinh chu)) dang cong dan thai cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tinh - hanh ((trinh chua) OR (trinh chu)) dang cong dan thai cao.
• Adding a wildcard symbol may retrieve word variants: doi chieu tinh - hanh ((trinh chua) or (trinh chu)) dang cong dan thai cao*.