Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hanh trang » thanh trung, canh tranh, hanh trinh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
tong cong » trong cong, cong cong, dung cong
trang va » tran van, hang va
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sach - hanh trang va ((nhung cong) or (tong cong)) dan ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh trang va ((nhung cong) OR (tong cong)) dan ((toan cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh trang va ((nhung cong) or (tong cong)) dan ((toan cau) or (toan tap))*.