Perhaps you should try some spelling variations:
tuong trong » thuong trong, truong trong, duong trong
hanh trang » thanh trung, hanh trinh, minh trang
trong dang » truong dang, trong dan, trong dong
dang than » dang thanh, sang than, dang tran
ho chieu » theo chieu, hoc thieu, doi chieu
va tuong » va thuong, va thong, xa truong
than cau » toan cau, phan cau, than cap
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (doi chi)) sach - ((hanh trang) or (canh tranh)) va tuong trong dang than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chi)) sach - ((hanh trang) OR (canh tranh)) va tuong trong dang than cau.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chi)) sach - ((hanh trang) or (canh tranh)) va tuong trong dang than cau*.