Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
thanh gian » thanh giang, thanh san, thanh toan
hieu viec » nhieu viec, hieu ve, sieu viet
cua triet » cua viet, su triet, va triet
viec cac » vien cac, viec cua, viec lam
y nang » ky nang, ly nang, v nang
cac vo » cac co, cac vi, cac bo

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach y nang x ho. hieu viec cac vo van ((thanh gian) OR (thach giang)) cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach y nang x ho. hieu viec cac vo van ((thanh gian) OR (thach giang)) cua triet".
• Adding a wildcard symbol may retrieve word variants: thuat sach y nang x ho. hieu viec cac vo van ((thanh gian) OR (thach giang)) cua triet*.