Perhaps you should try some spelling variations:
phap thuc » phap thu, phap hoc, phap tu
cham truc » cau truc, nham thuc, pham thuc
thanh va » thanh van, hanh va, thanh ha
va thanh » gia thanh, ban thanh, va tinh
thu lang » thu hang, thu bang, phu lang
so sach » so sanh, co sach, hoc sach
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
bo sach » co sach, hoc sach
va cua » va chua, via cua, ca cua
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: ((so sach) OR (bo sach)) thu lang xa hoi. hieu ve ((cham truc) or (phap thuc)) va thanh va cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (bo sach)) thu lang xa hoi. hieu ve ((cham truc) OR (phap thuc)) va thanh va cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) OR (bo sach)) thu lang xa hoi. hieu ve ((cham truc) or (phap thuc)) va thanh va cua te".
• Adding a wildcard symbol may retrieve word variants: ((so sach) OR (bo sach)) thu lang xa hoi. hieu ve ((cham truc) or (phap thuc)) va thanh va cua te*.