Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hanh trang » thanh trung, canh tranh, hanh trinh
thuat hung » thuat dung, thuat xung, thuat chuong
hoc thieu » toc thieu, hoc hien
thuat ung » thuat dung, thuat xung, thuat song
cong tac » cong ty
toan cao » toan tap
toan ban » van 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 ((thuat hung) or (thuat ung)) cong tac ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh trang ((thuat hung) OR (thuat ung)) cong tac ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh trang ((thuat hung) or (thuat ung)) cong tac ((toan cao) or (toan ban))*.