Perhaps you should try some spelling variations:
lieu tinh » trieu tinh, diep tinh, bien tinh
manh tung » manh hung, thanh tung
tung tuan » trung tuan, hung tuan, quang tuan
nhung don » nhung bo
nhung van » phung van, nhung bai, nhung cau
cot lieu » co lieu, vat lieu, so lieu
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: cot lieu tinh - manh tung tuan ((((nhung don) OR (nhung van))) or (thong thong)) tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cot lieu tinh - manh tung tuan ((((nhung don) OR (nhung van))) OR (thong thong)) tinh toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cot lieu tinh - manh tung tuan ((((nhung don) OR (nhung van))) or (thong thong)) tinh toan ban*".