Perhaps you should try some spelling variations:
thanh hoa » thanh pho
chu trang » thu trang, chu trong, thuc trang
hieu van » hieu va, thien van, lieu va
chu tren » cu tren, cau tren, chu trong
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
van cau » van dau, van hau, van chat
truc va » thuc va, thuc vat, trung va

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 xa hoi. hieu van cau ((truc va) or (hoc dan)) thanh hoa ((chu tren) OR (chu trang))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. hieu van cau ((truc va) OR (hoc dan)) thanh hoa ((chu tren) OR (chu trang)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xa hoi. hieu van cau ((truc va) or (hoc dan)) thanh hoa ((chu tren) OR (chu trang))".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. hieu van cau ((truc va) or (hoc dan)) thanh hoa ((chu tren) OR (chu trang))*.