Perhaps you should try some spelling variations:
trang trinh » tra trinh, trang tri, thanh trinh
tran tranh » tran thanh, trong tranh, tan tran
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hoc hieu » hoc thieu, hoc hien, doc hieu
cong san » cong tac
tuan cao » juan cao, quang cao, thuan cam
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: hoc hieu manh - hanh ((tran tranh) OR (trang trinh)) nhung cong san ((tuan cao) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - hanh ((tran tranh) OR (trang trinh)) nhung cong san ((tuan cao) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu manh - hanh ((tran tranh) OR (trang trinh)) nhung cong san ((tuan cao) or (toan cao))".
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - hanh ((tran tranh) OR (trang trinh)) nhung cong san ((tuan cao) or (toan cao))*.