Perhaps you should try some spelling variations:
thanh thang » nhanh thang, thanh thanh, thanh hang
chieu sach » chieu sang, chieu xanh, hieu cach
dong trong » duong trong, dung trong, cong trong
trong tinh » truong tinh, trong kinh, trong sinh
thang ha » thanh ha, tang ha, thong ha
toan cau » toan cao, toan ban, toan tap
ha dong » hoat dong, van dong

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 sach) or (chinh sach))) or (chiet tach)) - thanh thang ha dong trong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((chieu sach) OR (chinh sach))) OR (chiet tach)) - thanh thang ha dong trong tinh toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((((chieu sach) or (chinh sach))) or (chiet tach)) - thanh thang ha dong trong tinh toan cau*.