Perhaps you should try some spelling variations:
cap nuoc » dat nuoc
su triet » su tien, ve triet
hieu van » hieu va, thien van, lieu va
tinh lap » trinh lap, tinh lao, dinh lap
tu sach » thu sach, su sach, te sach
va tinh » may tinh
su viet » so viet
cac xuc » cam xuc, cac nuoc, chat xuc
nang co » nang cao, nang doc, nang noi
y nang » ky nang, ly nang, v nang
co hoi » co hoc, co loi

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y nang co hoi. hieu van ((cac xuc) or (cap nuoc)) va tinh lap ((su triet) or (su viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang co hoi. hieu van ((cac xuc) OR (cap nuoc)) va tinh lap ((su triet) OR (su viet)).
• Adding a wildcard symbol may retrieve word variants: tu sach y nang co hoi. hieu van ((cac xuc) or (cap nuoc)) va tinh lap ((su triet) or (su viet))*.