Perhaps you should try some spelling variations:
van nhanh » van thanh, van hanh, van khanh
hai chau » lai chau, ha chau, hat chau
hai hau » dai hau, hai hai, lai chau
vuc van » duc van, luc van, thuc van
cam vuc » cam xuc
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
ly hang » ly quang
ly nang » ky nang, ly vang, ly quang
va cam » va cham, va cac, va cao
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ((ly nang) OR (ly hang)) x hoi. hieu va cam vuc van nhanh ((hai hau) or (hai chau)) treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ly nang) OR (ly hang)) x hoi. hieu va cam vuc van nhanh ((hai hau) OR (hai chau)) treo.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ly nang) OR (ly hang)) x hoi. hieu va cam vuc van nhanh ((hai hau) or (hai chau)) treo".
• Adding a wildcard symbol may retrieve word variants: su sach ((ly nang) OR (ly hang)) x hoi. hieu va cam vuc van nhanh ((hai hau) or (hai chau)) treo*.