Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
hieu van » hieu va, thien van, lieu va
dau nuoc » dat nuoc, dau ngoc, cap nuoc
phan tai » pham tai, nhan tai, phan thi
dua tren » dung tren
lanh ky » hanh ky, nganh ky, thanh ky
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
dau luc » cau luc, dau luan, dau luot
va phan » van phan, va phat, va phap
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 lanh ky lang xa hoi. hieu van ((dau luc) OR (dau nuoc)) va phan tai ((dua tren) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat lanh ky lang xa hoi. hieu van ((dau luc) OR (dau nuoc)) va phan tai ((dua tren) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat lanh ky lang xa hoi. hieu van ((dau luc) OR (dau nuoc)) va phan tai ((dua tren) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: thuat lanh ky lang xa hoi. hieu van ((dau luc) OR (dau nuoc)) va phan tai ((dua tren) or (cua te))*.