Perhaps you should try some spelling variations:
trong thanh » truong thanh, rong thanh, thong thanh
trung thanh » truong thanh
chiet tach » chieu sach
hanh trinh » canh tranh, hanh chinh
trinh van » trinh han, trinh quan, trinh toan
ho chiet » ho chieu, ho thiet, hoc thiet
van dung » van dong, xay dung, tin dung
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chiet tach - hanh trinh van dung ((trong thanh) OR (trung thanh)) ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - hanh trinh van dung ((trong thanh) OR (trung thanh)) ((toan cau) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - hanh trinh van dung ((trong thanh) OR (trung thanh)) ((toan cau) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - hanh trinh van dung ((trong thanh) OR (trung thanh)) ((toan cau) or (toan ban))*.