Perhaps you should try some spelling variations:
tinh cap » tinh cao, tinh cam, tinh can
cuu tre » cua tre, cau tren, cau treo
tinh ca » tinh cao, tinh cua, tinh va
duoc tu » duc tu, duoc sua
hieu ve » hieu va, hieu van
ve duoc » te duoc, ve nuoc, che duoc
dang ha » dong ha, dung ha, lang ha
ky dang » ky nang, ky danh
su sach » so sach, vu sach
ha hoi » hoa hoi, ha noi, xa hoi
su sac » su cac, su xac
tu xa » tu xay, tu va, te xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sac) OR (su sach)) ky dang ha hoi. hieu ve duoc tu xa ((tinh cap) or (tinh ca)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sac) OR (su sach)) ky dang ha hoi. hieu ve duoc tu xa ((tinh cap) OR (tinh ca)) cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sac) OR (su sach)) ky dang ha hoi. hieu ve duoc tu xa ((tinh cap) or (tinh ca)) cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((su sac) OR (su sach)) ky dang ha hoi. hieu ve duoc tu xa ((tinh cap) or (tinh ca)) cuu tre*.