Perhaps you should try some spelling variations:
manh hanh » xanh hanh, danh thanh, minh thanh
tu truyen » co truyen, di truyen
thu cach » thuc cach, thu canh, tu cach
thu ban » thu hang
dong xa » dong xay, duong xa, dong ha
hieu ve » hieu va, hieu van
su manh » suc manh, su menh, tu manh
tu tren » tu tieng, tu trong, dua tren
ve cao » va cao, ve bao, ve cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu cach) or (thu ban)) tu dong xa hoi. hieu ve cao su manh hanh vi ((tu tren) or (tu truyen))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu cach) OR (thu ban)) tu dong xa hoi. hieu ve cao su manh hanh vi ((tu tren) OR (tu truyen)).
• Adding a wildcard symbol may retrieve word variants: ((thu cach) or (thu ban)) tu dong xa hoi. hieu ve cao su manh hanh vi ((tu tren) or (tu truyen))*.