Perhaps you should try some spelling variations:
trang tuan » tran tuan, trung tuan, trong tuan
hoc thieu » hoc hien
trang qua » trong qua, trong quan, trung quan
dung cong » dung trong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
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) OR (toc thieu)) sach - hanh ((trang qua) or (trang tuan)) dung cong manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) sach - hanh ((trang qua) OR (trang tuan)) dung cong manh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) OR (toc thieu)) sach - hanh ((trang qua) or (trang tuan)) dung cong manh toan cau".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) OR (toc thieu)) sach - hanh ((trang qua) or (trang tuan)) dung cong manh toan cau*.