Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
hinh sinh » tinh sinh, hinh dinh, hinh kinh
ho chieu » theo chieu, hoc thieu, doi chieu
quan cau » quang cao, toan cau, quan ha
toan ban » van ban
sinh va » sinh vat, tinh va, dinh van

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 tinh - hinh sinh va ((nhung cong) or (thong cong)) van ((quan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - hinh sinh va ((nhung cong) OR (thong cong)) van ((quan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - hinh sinh va ((nhung cong) or (thong cong)) van ((quan cau) or (toan ban))*.