Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
phan thai » phan thi, phan hai, phan than
thai cua » than cua, tai cuc, tri cua
tu sach » thu sach, su sach, te sach
van dau » van dao, phan dau
va phan » van phan, va phat, va phap
van cau » van hau, van chat, toan cau
nang xa » nang x, lang xa, nang ma
xuc va » duc va, tuc va, luc va
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: ((tu sach) or (thuat sach)) ky nang xa hoi. hieu ((van cau) or (van dau)) xuc va phan thai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thuat sach)) ky nang xa hoi. hieu ((van cau) OR (van dau)) xuc va phan thai cua te.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thuat sach)) ky nang xa hoi. hieu ((van cau) or (van dau)) xuc va phan thai cua te*.