Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh san
thanh hoa » thanh pho
dau theo » cau theo, dai theo, dam theo
hau theo » cau theo, hanh theo, pham theo
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
sach ky » sac ky, sach y, sach ty
su sach » so sach, vu sach
ve cac » va cac, vien cac
xuc va » duc va, tuc va, luc va
nang o » nang co, nang ho, nang ro
o hoi » co hoi, o hoc, o hai

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 ky nang o hoi. hieu ve cac xuc va ((thanh hai) or (thanh hoa)) ((hau theo) OR (dau theo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang o hoi. hieu ve cac xuc va ((thanh hai) OR (thanh hoa)) ((hau theo) OR (dau theo)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang o hoi. hieu ve cac xuc va ((thanh hai) or (thanh hoa)) ((hau theo) OR (dau theo))".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang o hoi. hieu ve cac xuc va ((thanh hai) or (thanh hoa)) ((hau theo) OR (dau theo))*.