Perhaps you should try some spelling variations:
trinh thanh » tinh thanh, trinh han, trinh toan
thanh tung » thanh cong
doi chieu » doc hieu, doi chi, mot chieu
hoc thieu » toc thieu, hoc hien
qua trong » quan trong, qua trinh, qua song
thanh cau » thanh chau, thanh mau, nhanh cau
ho chieu » theo chieu, mot chieu, thi chieu
tung qua » dung qua, tuong quan, trung quan

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) OR (hoc thieu))) or (doi chieu)) xanh - thanh tung qua trong cong trinh thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((ho chieu) OR (hoc thieu))) OR (doi chieu)) xanh - thanh tung qua trong cong trinh thanh cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((ho chieu) OR (hoc thieu))) or (doi chieu)) xanh - thanh tung qua trong cong trinh thanh cau".
• Adding a wildcard symbol may retrieve word variants: ((((ho chieu) OR (hoc thieu))) or (doi chieu)) xanh - thanh tung qua trong cong trinh thanh cau*.