Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hanh trung » thanh trung, hanh trang, manh trung
hoc thieu » toc thieu, hoc hien
trung cap » truong cao, trung tam
cap nhung » cam nhung, vap nhung, dap nhung
cong san » cong tac
toan cau » 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 thieu sach - hanh trung cap nhung ((huong dan) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh trung cap nhung ((huong dan) OR (cong san)) toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh trung cap nhung ((huong dan) or (cong san)) toan cau*.