Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
thanh lap » thanh san, phan lap, thanh van
cua viet » ca viet, hoa viet, cua vat
chat xuc » chat huu, cam xuc, chao xu
hieu van » hieu va, thien van, lieu va
sach ky » sac ky, sach y, sach ty
cao hoi » cau hoi, co hoi, cao hoc
su sach » so sach, vu sach
ha xuc » hoa xuc, ha duc

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 cao hoi. hieu van ((ha xuc) OR (chat xuc)) va ((thanh lap) or (thanh hai)) cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang cao hoi. hieu van ((ha xuc) OR (chat xuc)) va ((thanh lap) OR (thanh hai)) cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang cao hoi. hieu van ((ha xuc) OR (chat xuc)) va ((thanh lap) or (thanh hai)) cua viet".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang cao hoi. hieu van ((ha xuc) OR (chat xuc)) va ((thanh lap) or (thanh hai)) cua viet*.