Perhaps you should try some spelling variations:
thuat sac » thuat sach, thuat san, thuat tac
thien van » thi van
dang thai » dang thi, dang hai, lang thai
dang khai » dang khoi, dang hai, quang khai
dat duoc » dat nuoc, da duoc, luat duoc
nang xa » nang x, lang xa, nang ma
van dat » van dao, van dau, dan dat
duoc va » nuoc va, duc va, duoc ma
sac ky » cac ky, sai ky
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sac ky nang xa hoi. thien van dat duoc va ((dang thai) or (dang khai)) cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sac ky nang xa hoi. thien van dat duoc va ((dang thai) OR (dang khai)) cua tu.
• Adding a wildcard symbol may retrieve word variants: thuat sac ky nang xa hoi. thien van dat duoc va ((dang thai) or (dang khai)) cua tu*.