Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
dung cong » dung trong
trong ca » trong nha
cong tap » cuong tap, cong tac, cong tan
tap doan » tap quan
doan cau » toan cau, doan dau, doan cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu tinh - hanh ((trong ca) OR (trong cac)) dung cong tap doan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu tinh - hanh ((trong ca) OR (trong cac)) dung cong tap doan cau".
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - hanh ((trong ca) OR (trong cac)) dung cong tap doan cau*.