Perhaps you should try some spelling variations:
ngang thong » mang thong, nang thuong, quang thong
chiet tach » chieu sach
thong cong » trong cong, tong cong, thong thong
cong ngang » cong nhan, cong quang, cong lang
trung dap » trung cap, trung dai, trung lap
trung dam » trung tam, trung dai, trong dam
ho chiet » ho chieu, ho thiet, hoc thiet
thong tu » phong tuc, thong tin, thong ke

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 - thanh ((trung dap) OR (trung dam)) thong cong ngang thong tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - thanh ((trung dap) OR (trung dam)) thong cong ngang thong tu".
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - thanh ((trung dap) OR (trung dam)) thong cong ngang thong tu*.