Perhaps you should try some spelling variations:
thanh trung » thanh tung
hanh trung » hanh trang, manh trung, danh trung
tuan trong » thuan trong, quan trong, tran trong
hoc chieu » hoc thieu, ho chieu, hoc dieu
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
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 chieu) or (hoc hien)) sach - ((hanh trung) OR (thanh trung)) tuan trong cong van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc hien)) sach - ((hanh trung) OR (thanh trung)) tuan trong cong van toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) or (hoc hien)) sach - ((hanh trung) OR (thanh trung)) tuan trong cong van toan cao".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (hoc hien)) sach - ((hanh trung) OR (thanh trung)) tuan trong cong van toan cao*.