Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
ve triet » va trien, su triet
cau tren » cu tren, dau tren, ca tren
te sach » toc sach
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
dang ha » dong ha, dung ha, lang ha
dinh va » dinh ve, tinh va, sinh va
van am » van nam, van lam, van dam
thuc » thu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky dang ha noi. hieu van am thuc vat ((dinh va) or (dinh van)) ((ve triet) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky dang ha noi. hieu van am thuc vat ((dinh va) OR (dinh van)) ((ve triet) OR (cau tren)).
• Adding a wildcard symbol may retrieve word variants: te sach ky dang ha noi. hieu van am thuc vat ((dinh va) or (dinh van)) ((ve triet) or (cau tren))*.