Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
thong cong » trong cong, tong cong, thong thong
hoc chieu » hoc thieu, ho chieu, hoc hien
tranh cua » manh cua
doanh cua » doanh luan
dan than » ban than, van than, dan toan
dan chan » dan gian, dan ca, van chat

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 ((tranh cua) or (doanh cua)) thong cong ((dan than) or (dan chan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu tinh - hanh ((tranh cua) OR (doanh cua)) thong cong ((dan than) OR (dan chan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - hanh ((tranh cua) or (doanh cua)) thong cong ((dan than) or (dan chan)) cau*.