Perhaps you should try some spelling variations:
thuat san » thuat toan, thuat song, thuat lanh
nhan tai » hang tai, van tai, toan tai
van nhan » van phan, van thanh, danh nhan
hieu van » hieu va, thien van, lieu va
lang ha » long ha
van dau » van dao, phan dau
dau tuc » dau tu, dao tuc, cau truc
tuc van » thuc van, truc van, tuc va
lang xa » dang xay, lang van
cua tre » cuu tre, cua triet, dua tren
san ky » sang ky, van ky, dan ky
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat san ky ((lang xa) OR (lang ha)) hoi. hieu van dau tuc van nhan tai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat san ky ((lang xa) OR (lang ha)) hoi. hieu van dau tuc van nhan tai ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat san ky ((lang xa) OR (lang ha)) hoi. hieu van dau tuc van nhan tai ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: thuat san ky ((lang xa) OR (lang ha)) hoi. hieu van dau tuc van nhan tai ((cua tre) or (cua te))*.