Perhaps you should try some spelling variations:
trang thai » trang trai, trong thai, trang tai
cua triet » cua viet, su triet, va triet
cam thue » cam thu, lam thue, nam thue
va trang » va trung, va thanh, va nang
tu sach » thu sach, su sach, te sach
ly nang » ky nang, ly hang, ly vang
thue va » thuc va, thuyet va, thuc vat
cua tre » cua te, cuu tre, dua tren
y nang » ky nang, v nang, may nang
va cam » va cham, va cac, va cao

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) or (ly nang)) xa hoi. lieu va cam thue va trang thai ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((y nang) OR (ly nang)) xa hoi. lieu va cam thue va trang thai ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((y nang) or (ly nang)) xa hoi. lieu va cam thue va trang thai ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: tu sach ((y nang) or (ly nang)) xa hoi. lieu va cam thue va trang thai ((cua tre) OR (cua triet))*.