Perhaps you should try some spelling variations:
chon loc » cho hoc
cham loc » cham o, hau loc, cam lo
dung hai » dung tai, dung ha, dung sai
vat dung » van dung, va dung, viet dung
su sach » so sach, vu sach
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
hai cua » thai cua, dai cua, hoi cua
y lang » o lang, _ lang, tay lang
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: su sach y lang xa hoi. hieu ve ((((cham loc) OR (cham soc))) or (chon loc)) vat dung hai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y lang xa hoi. hieu ve ((((cham loc) OR (cham soc))) OR (chon loc)) vat dung hai cua tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y lang xa hoi. hieu ve ((((cham loc) OR (cham soc))) or (chon loc)) vat dung hai cua tu*".