Perhaps you should try some spelling variations:
truong cua » truong ca, truong quan, huong cua
truong cao » truong dai
thong cong » trong cong, tong cong, thong thong
thi chieu » thi chien, thi hieu, theo chieu
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thi chieu) or (ho chieu)) sach - thanh ((truong cua) OR (truong cao)) thong cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thi chieu) OR (ho chieu)) sach - thanh ((truong cua) OR (truong cao)) thong cong dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thi chieu) or (ho chieu)) sach - thanh ((truong cua) OR (truong cao)) thong cong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: ((thi chieu) or (ho chieu)) sach - thanh ((truong cua) OR (truong cao)) thong cong dan toan cao*.