Perhaps you should try some spelling variations:
trinh hoi » trinh hoa, trinh do, trinh han
cham duc » pham duc, cham soc, pham duy
tinh hoi » tinh hoc, tinh hai, tinh hoa
tu sach » thu sach, su sach, te sach
sach tu » sach thu, cach tu, sach ty
hieu va » lieu va
hung xa » chung xa, huong xa, hung ha
tu hung » tu chung, tu nhung, tu vung
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 tu hung xa hoi. ((hieu va) or (hieu qua)) cham duc va ((tinh hoi) or (trinh hoi)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach tu hung xa hoi. ((hieu va) OR (hieu qua)) cham duc va ((tinh hoi) OR (trinh hoi)) cua te.
• Adding a wildcard symbol may retrieve word variants: tu sach tu hung xa hoi. ((hieu va) or (hieu qua)) cham duc va ((tinh hoi) or (trinh hoi)) cua te*.