Perhaps you should try some spelling variations:
phu lang » phap lang, phu khang, phu luong
thu bang » thu ban, thu hang, chu bang
ban hanh » ban hang
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
cac tuc » cac toc, cac tu, cac tac
tuc ban » thuc ban, truc ban, tu ban
hanh le » thanh le, hanh ve, hanh de
le cua » ly cua

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 ((phu lang) or (thu bang)) xa hoi. hieu va cac tuc ban hanh le cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((phu lang) OR (thu bang)) xa hoi. hieu va cac tuc ban hanh le cua vat.
• Adding a wildcard symbol may retrieve word variants: tu sach ((phu lang) or (thu bang)) xa hoi. hieu va cac tuc ban hanh le cua vat*.