Perhaps you should try some spelling variations:
trong thanh » truong thanh, trung thanh, rong thanh
thien van » thi van
cuc trong » chuc trong, duc trong, luc trong
su sach » so sach, vu sach
te sach » toc sach
van bao » van ban, van dao
bao cuc » bao luc, bao cua, bao thuc
tai cuu » tai buu, tai cua, thai cua
y nang » ky nang, ly nang, v nang
x hoi » xa hoi, o hoi, x ho

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) or (te sach)) y nang x hoi. thien van bao cuc trong thanh ((tai cuu) OR (tai cuc)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (te sach)) y nang x hoi. thien van bao cuc trong thanh ((tai cuu) OR (tai cuc)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (te sach)) y nang x hoi. thien van bao cuc trong thanh ((tai cuu) OR (tai cuc)) tre".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (te sach)) y nang x hoi. thien van bao cuc trong thanh ((tai cuu) OR (tai cuc)) tre*.